256601800

素因数分解:

$2^3\times 5^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{613}}^1$

素因数の和:672

約数の個数: 192

約数和(自身を含む): 767450880

約数和(自身を除く): 510849080

約数列:

[1, 2, 4, 5, 7, 8, 10, 13, 14, 20, 23, 25, 26, 28, 35, 40, 46, 50, 52, 56, 65, 70, 91, 92, 100, 104, 115, 130, 140, 161, 175, 182, 184, 200, 230, 260, 280, 299, 322, 325, 350, 364, 455, 460, 520, 575, 598, 613, 644, 650, 700, 728, 805, 910, 920, 1150, 1196, 1226, 1288, 1300, 1400, 1495, 1610, 1820, 2093, 2275, 2300, 2392, 2452, 2600, 2990, 3065, 3220, 3640, 4025, 4186, 4291, 4550, 4600, 4904, 5980, 6130, 6440, 7475, 7969, 8050, 8372, 8582, 9100, 10465, 11960, 12260, 14099, 14950, 15325, 15938, 16100, 16744, 17164, 18200, 20930, 21455, 24520, 28198, 29900, 30650, 31876, 32200, 34328, 39845, 41860, 42910, 52325, 55783, 56396, 59800, 61300, 63752, 70495, 79690, 83720, 85820, 98693, 104650, 107275, 111566, 112792, 122600, 140990, 159380, 171640, 183287, 197386, 199225, 209300, 214550, 223132, 278915, 281980, 318760, 352475, 366574, 394772, 398450, 418600, 429100, 446264, 493465, 557830, 563960, 704950, 733148, 789544, 796900, 858200, 916435, 986930, 1115660, 1283009, 1394575, 1409900, 1466296, 1593800, 1832870, 1973860, 2231320, 2467325, 2566018, 2789150, 2819800, 3665740, 3947720, 4582175, 4934650, 5132036, 5578300, 6415045, 7331480, 9164350, 9869300, 10264072, 11156600, 12830090, 18328700, 19738600, 25660180, 32075225, 36657400, 51320360, 64150450, 128300900, 256601800]

約数ペア:

[(1, 256601800), (2, 128300900), (4, 64150450), (5, 51320360), (7, 36657400), (8, 32075225), (10, 25660180), (13, 19738600), (14, 18328700), (20, 12830090), (23, 11156600), (25, 10264072), (26, 9869300), (28, 9164350), (35, 7331480), (40, 6415045), (46, 5578300), (50, 5132036), (52, 4934650), (56, 4582175), (65, 3947720), (70, 3665740), (91, 2819800), (92, 2789150), (100, 2566018), (104, 2467325), (115, 2231320), (130, 1973860), (140, 1832870), (161, 1593800), (175, 1466296), (182, 1409900), (184, 1394575), (200, 1283009), (230, 1115660), (260, 986930), (280, 916435), (299, 858200), (322, 796900), (325, 789544), (350, 733148), (364, 704950), (455, 563960), (460, 557830), (520, 493465), (575, 446264), (598, 429100), (613, 418600), (644, 398450), (650, 394772), (700, 366574), (728, 352475), (805, 318760), (910, 281980), (920, 278915), (1150, 223132), (1196, 214550), (1226, 209300), (1288, 199225), (1300, 197386), (1400, 183287), (1495, 171640), (1610, 159380), (1820, 140990), (2093, 122600), (2275, 112792), (2300, 111566), (2392, 107275), (2452, 104650), (2600, 98693), (2990, 85820), (3065, 83720), (3220, 79690), (3640, 70495), (4025, 63752), (4186, 61300), (4291, 59800), (4550, 56396), (4600, 55783), (4904, 52325), (5980, 42910), (6130, 41860), (6440, 39845), (7475, 34328), (7969, 32200), (8050, 31876), (8372, 30650), (8582, 29900), (9100, 28198), (10465, 24520), (11960, 21455), (12260, 20930), (14099, 18200), (14950, 17164), (15325, 16744), (15938, 16100)]