40879280

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{1709}}^1$

素因数の和:1758

約数の個数: 80

約数和(自身を含む): 106868160

約数和(自身を除く): 65988880

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 23, 26, 40, 46, 52, 65, 80, 92, 104, 115, 130, 184, 208, 230, 260, 299, 368, 460, 520, 598, 920, 1040, 1196, 1495, 1709, 1840, 2392, 2990, 3418, 4784, 5980, 6836, 8545, 11960, 13672, 17090, 22217, 23920, 27344, 34180, 39307, 44434, 68360, 78614, 88868, 111085, 136720, 157228, 177736, 196535, 222170, 314456, 355472, 393070, 444340, 510991, 628912, 786140, 888680, 1021982, 1572280, 1777360, 2043964, 2554955, 3144560, 4087928, 5109910, 8175856, 10219820, 20439640, 40879280]

約数ペア:

[(1, 40879280), (2, 20439640), (4, 10219820), (5, 8175856), (8, 5109910), (10, 4087928), (13, 3144560), (16, 2554955), (20, 2043964), (23, 1777360), (26, 1572280), (40, 1021982), (46, 888680), (52, 786140), (65, 628912), (80, 510991), (92, 444340), (104, 393070), (115, 355472), (130, 314456), (184, 222170), (208, 196535), (230, 177736), (260, 157228), (299, 136720), (368, 111085), (460, 88868), (520, 78614), (598, 68360), (920, 44434), (1040, 39307), (1196, 34180), (1495, 27344), (1709, 23920), (1840, 22217), (2392, 17090), (2990, 13672), (3418, 11960), (4784, 8545), (5980, 6836)]