256244186800

素因数分解:

$2^4\times 5^2\times 7^3\times {\mathrm{23}}^1\times {\mathrm{81203}}^1$

素因数の和:81265

約数の個数: 240

約数和(自身を含む): 749155622400

約数和(自身を除く): 492911435600

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 23, 25, 28, 35, 40, 46, 49, 50, 56, 70, 80, 92, 98, 100, 112, 115, 140, 161, 175, 184, 196, 200, 230, 245, 280, 322, 343, 350, 368, 392, 400, 460, 490, 560, 575, 644, 686, 700, 784, 805, 920, 980, 1127, 1150, 1225, 1288, 1372, 1400, 1610, 1715, 1840, 1960, 2254, 2300, 2450, 2576, 2744, 2800, 3220, 3430, 3920, 4025, 4508, 4600, 4900, 5488, 5635, 6440, 6860, 7889, 8050, 8575, 9016, 9200, 9800, 11270, 12880, 13720, 15778, 16100, 17150, 18032, 19600, 22540, 27440, 28175, 31556, 32200, 34300, 39445, 45080, 56350, 63112, 64400, 68600, 78890, 81203, 90160, 112700, 126224, 137200, 157780, 162406, 197225, 225400, 315560, 324812, 394450, 406015, 450800, 568421, 631120, 649624, 788900, 812030, 1136842, 1299248, 1577800, 1624060, 1867669, 2030075, 2273684, 2842105, 3155600, 3248120, 3735338, 3978947, 4060150, 4547368, 5684210, 6496240, 7470676, 7957894, 8120300, 9094736, 9338345, 11368420, 13073683, 14210525, 14941352, 15915788, 16240600, 18676690, 19894735, 22736840, 26147366, 27852629, 28421050, 29882704, 31831576, 32481200, 37353380, 39789470, 45473680, 46691725, 52294732, 55705258, 56842100, 63663152, 65368415, 74706760, 79578940, 91515781, 93383450, 99473675, 104589464, 111410516, 113684200, 130736830, 139263145, 149413520, 159157880, 183031562, 186766900, 198947350, 209178928, 222821032, 227368400, 261473660, 278526290, 318315760, 326842075, 366063124, 373533800, 397894700, 445642064, 457578905, 522947320, 557052580, 640610467, 653684150, 696315725, 732126248, 747067600, 795789400, 915157810, 1045894640, 1114105160, 1281220934, 1307368300, 1392631450, 1464252496, 1591578800, 1830315620, 2228210320, 2287894525, 2562441868, 2614736600, 2785262900, 3203052335, 3660631240, 4575789050, 5124883736, 5229473200, 5570525800, 6406104670, 7321262480, 9151578100, 10249767472, 11141051600, 12812209340, 16015261675, 18303156200, 25624418680, 32030523350, 36606312400, 51248837360, 64061046700, 128122093400, 256244186800]

約数ペア:

[(1, 256244186800), (2, 128122093400), (4, 64061046700), (5, 51248837360), (7, 36606312400), (8, 32030523350), (10, 25624418680), (14, 18303156200), (16, 16015261675), (20, 12812209340), (23, 11141051600), (25, 10249767472), (28, 9151578100), (35, 7321262480), (40, 6406104670), (46, 5570525800), (49, 5229473200), (50, 5124883736), (56, 4575789050), (70, 3660631240), (80, 3203052335), (92, 2785262900), (98, 2614736600), (100, 2562441868), (112, 2287894525), (115, 2228210320), (140, 1830315620), (161, 1591578800), (175, 1464252496), (184, 1392631450), (196, 1307368300), (200, 1281220934), (230, 1114105160), (245, 1045894640), (280, 915157810), (322, 795789400), (343, 747067600), (350, 732126248), (368, 696315725), (392, 653684150), (400, 640610467), (460, 557052580), (490, 522947320), (560, 457578905), (575, 445642064), (644, 397894700), (686, 373533800), (700, 366063124), (784, 326842075), (805, 318315760), (920, 278526290), (980, 261473660), (1127, 227368400), (1150, 222821032), (1225, 209178928), (1288, 198947350), (1372, 186766900), (1400, 183031562), (1610, 159157880), (1715, 149413520), (1840, 139263145), (1960, 130736830), (2254, 113684200), (2300, 111410516), (2450, 104589464), (2576, 99473675), (2744, 93383450), (2800, 91515781), (3220, 79578940), (3430, 74706760), (3920, 65368415), (4025, 63663152), (4508, 56842100), (4600, 55705258), (4900, 52294732), (5488, 46691725), (5635, 45473680), (6440, 39789470), (6860, 37353380), (7889, 32481200), (8050, 31831576), (8575, 29882704), (9016, 28421050), (9200, 27852629), (9800, 26147366), (11270, 22736840), (12880, 19894735), (13720, 18676690), (15778, 16240600), (16100, 15915788), (17150, 14941352), (18032, 14210525), (19600, 13073683), (22540, 11368420), (27440, 9338345), (28175, 9094736), (31556, 8120300), (32200, 7957894), (34300, 7470676), (39445, 6496240), (45080, 5684210), (56350, 4547368), (63112, 4060150), (64400, 3978947), (68600, 3735338), (78890, 3248120), (81203, 3155600), (90160, 2842105), (112700, 2273684), (126224, 2030075), (137200, 1867669), (157780, 1624060), (162406, 1577800), (197225, 1299248), (225400, 1136842), (315560, 812030), (324812, 788900), (394450, 649624), (406015, 631120), (450800, 568421)]