25555760

素因数分解:

$2^4\times 5^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{43}}^1$

素因数の和:115

約数の個数: 160

約数和(自身を含む): 70709760

約数和(自身を除く): 45154000

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 19, 20, 23, 34, 38, 40, 43, 46, 68, 76, 80, 85, 86, 92, 95, 115, 136, 152, 170, 172, 184, 190, 215, 230, 272, 304, 323, 340, 344, 368, 380, 391, 430, 437, 460, 646, 680, 688, 731, 760, 782, 817, 860, 874, 920, 989, 1292, 1360, 1462, 1520, 1564, 1615, 1634, 1720, 1748, 1840, 1955, 1978, 2185, 2584, 2924, 3128, 3230, 3268, 3440, 3496, 3655, 3910, 3956, 4085, 4370, 4945, 5168, 5848, 6256, 6460, 6536, 6992, 7310, 7429, 7820, 7912, 8170, 8740, 9890, 11696, 12920, 13072, 13889, 14620, 14858, 15640, 15824, 16340, 16813, 17480, 18791, 19780, 25840, 27778, 29240, 29716, 31280, 32680, 33626, 34960, 37145, 37582, 39560, 55556, 58480, 59432, 65360, 67252, 69445, 74290, 75164, 79120, 84065, 93955, 111112, 118864, 134504, 138890, 148580, 150328, 168130, 187910, 222224, 269008, 277780, 297160, 300656, 319447, 336260, 375820, 555560, 594320, 638894, 672520, 751640, 1111120, 1277788, 1345040, 1503280, 1597235, 2555576, 3194470, 5111152, 6388940, 12777880, 25555760]

約数ペア:

[(1, 25555760), (2, 12777880), (4, 6388940), (5, 5111152), (8, 3194470), (10, 2555576), (16, 1597235), (17, 1503280), (19, 1345040), (20, 1277788), (23, 1111120), (34, 751640), (38, 672520), (40, 638894), (43, 594320), (46, 555560), (68, 375820), (76, 336260), (80, 319447), (85, 300656), (86, 297160), (92, 277780), (95, 269008), (115, 222224), (136, 187910), (152, 168130), (170, 150328), (172, 148580), (184, 138890), (190, 134504), (215, 118864), (230, 111112), (272, 93955), (304, 84065), (323, 79120), (340, 75164), (344, 74290), (368, 69445), (380, 67252), (391, 65360), (430, 59432), (437, 58480), (460, 55556), (646, 39560), (680, 37582), (688, 37145), (731, 34960), (760, 33626), (782, 32680), (817, 31280), (860, 29716), (874, 29240), (920, 27778), (989, 25840), (1292, 19780), (1360, 18791), (1462, 17480), (1520, 16813), (1564, 16340), (1615, 15824), (1634, 15640), (1720, 14858), (1748, 14620), (1840, 13889), (1955, 13072), (1978, 12920), (2185, 11696), (2584, 9890), (2924, 8740), (3128, 8170), (3230, 7912), (3268, 7820), (3440, 7429), (3496, 7310), (3655, 6992), (3910, 6536), (3956, 6460), (4085, 6256), (4370, 5848), (4945, 5168)]