2981406740

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^2\times {\mathrm{23}}^1\times {\mathrm{38351}}^1$

素因数の和:38409

約数の個数: 72

約数和(自身を含む): 7074563328

約数和(自身を除く): 4093156588

約数列:

[1, 2, 4, 5, 10, 13, 20, 23, 26, 46, 52, 65, 92, 115, 130, 169, 230, 260, 299, 338, 460, 598, 676, 845, 1196, 1495, 1690, 2990, 3380, 3887, 5980, 7774, 15548, 19435, 38351, 38870, 76702, 77740, 153404, 191755, 383510, 498563, 767020, 882073, 997126, 1764146, 1994252, 2492815, 3528292, 4410365, 4985630, 6481319, 8820730, 9971260, 11466949, 12962638, 17641460, 22933898, 25925276, 32406595, 45867796, 57334745, 64813190, 114669490, 129626380, 149070337, 229338980, 298140674, 596281348, 745351685, 1490703370, 2981406740]

約数ペア:

[(1, 2981406740), (2, 1490703370), (4, 745351685), (5, 596281348), (10, 298140674), (13, 229338980), (20, 149070337), (23, 129626380), (26, 114669490), (46, 64813190), (52, 57334745), (65, 45867796), (92, 32406595), (115, 25925276), (130, 22933898), (169, 17641460), (230, 12962638), (260, 11466949), (299, 9971260), (338, 8820730), (460, 6481319), (598, 4985630), (676, 4410365), (845, 3528292), (1196, 2492815), (1495, 1994252), (1690, 1764146), (2990, 997126), (3380, 882073), (3887, 767020), (5980, 498563), (7774, 383510), (15548, 191755), (19435, 153404), (38351, 77740), (38870, 76702)]