40281280

素因数分解:

$2^6\times 5^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{421}}^1$

素因数の和:474

約数の個数: 112

約数和(自身を含む): 108045504

約数和(自身を除く): 67764224

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 23, 26, 32, 40, 46, 52, 64, 65, 80, 92, 104, 115, 130, 160, 184, 208, 230, 260, 299, 320, 368, 416, 421, 460, 520, 598, 736, 832, 842, 920, 1040, 1196, 1472, 1495, 1684, 1840, 2080, 2105, 2392, 2990, 3368, 3680, 4160, 4210, 4784, 5473, 5980, 6736, 7360, 8420, 9568, 9683, 10946, 11960, 13472, 16840, 19136, 19366, 21892, 23920, 26944, 27365, 33680, 38732, 43784, 47840, 48415, 54730, 67360, 77464, 87568, 95680, 96830, 109460, 125879, 134720, 154928, 175136, 193660, 218920, 251758, 309856, 350272, 387320, 437840, 503516, 619712, 629395, 774640, 875680, 1007032, 1258790, 1549280, 1751360, 2014064, 2517580, 3098560, 4028128, 5035160, 8056256, 10070320, 20140640, 40281280]

約数ペア:

[(1, 40281280), (2, 20140640), (4, 10070320), (5, 8056256), (8, 5035160), (10, 4028128), (13, 3098560), (16, 2517580), (20, 2014064), (23, 1751360), (26, 1549280), (32, 1258790), (40, 1007032), (46, 875680), (52, 774640), (64, 629395), (65, 619712), (80, 503516), (92, 437840), (104, 387320), (115, 350272), (130, 309856), (160, 251758), (184, 218920), (208, 193660), (230, 175136), (260, 154928), (299, 134720), (320, 125879), (368, 109460), (416, 96830), (421, 95680), (460, 87568), (520, 77464), (598, 67360), (736, 54730), (832, 48415), (842, 47840), (920, 43784), (1040, 38732), (1196, 33680), (1472, 27365), (1495, 26944), (1684, 23920), (1840, 21892), (2080, 19366), (2105, 19136), (2392, 16840), (2990, 13472), (3368, 11960), (3680, 10946), (4160, 9683), (4210, 9568), (4784, 8420), (5473, 7360), (5980, 6736)]