25809680

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^2\times {\mathrm{23}}^1\times {\mathrm{83}}^1$

素因数の和:145

約数の個数: 120

約数和(自身を含む): 68620608

約数和(自身を除く): 42810928

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 23, 26, 40, 46, 52, 65, 80, 83, 92, 104, 115, 130, 166, 169, 184, 208, 230, 260, 299, 332, 338, 368, 415, 460, 520, 598, 664, 676, 830, 845, 920, 1040, 1079, 1196, 1328, 1352, 1495, 1660, 1690, 1840, 1909, 2158, 2392, 2704, 2990, 3320, 3380, 3818, 3887, 4316, 4784, 5395, 5980, 6640, 6760, 7636, 7774, 8632, 9545, 10790, 11960, 13520, 14027, 15272, 15548, 17264, 19090, 19435, 21580, 23920, 24817, 28054, 30544, 31096, 38180, 38870, 43160, 49634, 56108, 62192, 70135, 76360, 77740, 86320, 99268, 112216, 124085, 140270, 152720, 155480, 198536, 224432, 248170, 280540, 310960, 322621, 397072, 496340, 561080, 645242, 992680, 1122160, 1290484, 1613105, 1985360, 2580968, 3226210, 5161936, 6452420, 12904840, 25809680]

約数ペア:

[(1, 25809680), (2, 12904840), (4, 6452420), (5, 5161936), (8, 3226210), (10, 2580968), (13, 1985360), (16, 1613105), (20, 1290484), (23, 1122160), (26, 992680), (40, 645242), (46, 561080), (52, 496340), (65, 397072), (80, 322621), (83, 310960), (92, 280540), (104, 248170), (115, 224432), (130, 198536), (166, 155480), (169, 152720), (184, 140270), (208, 124085), (230, 112216), (260, 99268), (299, 86320), (332, 77740), (338, 76360), (368, 70135), (415, 62192), (460, 56108), (520, 49634), (598, 43160), (664, 38870), (676, 38180), (830, 31096), (845, 30544), (920, 28054), (1040, 24817), (1079, 23920), (1196, 21580), (1328, 19435), (1352, 19090), (1495, 17264), (1660, 15548), (1690, 15272), (1840, 14027), (1909, 13520), (2158, 11960), (2392, 10790), (2704, 9545), (2990, 8632), (3320, 7774), (3380, 7636), (3818, 6760), (3887, 6640), (4316, 5980), (4784, 5395)]