31173740

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^2\times {\mathrm{23}}^1\times {\mathrm{401}}^1$

素因数の和:459

約数の個数: 72

約数和(自身を含む): 74154528

約数和(自身を除く): 42980788

約数列:

[1, 2, 4, 5, 10, 13, 20, 23, 26, 46, 52, 65, 92, 115, 130, 169, 230, 260, 299, 338, 401, 460, 598, 676, 802, 845, 1196, 1495, 1604, 1690, 2005, 2990, 3380, 3887, 4010, 5213, 5980, 7774, 8020, 9223, 10426, 15548, 18446, 19435, 20852, 26065, 36892, 38870, 46115, 52130, 67769, 77740, 92230, 104260, 119899, 135538, 184460, 239798, 271076, 338845, 479596, 599495, 677690, 1198990, 1355380, 1558687, 2397980, 3117374, 6234748, 7793435, 15586870, 31173740]

約数ペア:

[(1, 31173740), (2, 15586870), (4, 7793435), (5, 6234748), (10, 3117374), (13, 2397980), (20, 1558687), (23, 1355380), (26, 1198990), (46, 677690), (52, 599495), (65, 479596), (92, 338845), (115, 271076), (130, 239798), (169, 184460), (230, 135538), (260, 119899), (299, 104260), (338, 92230), (401, 77740), (460, 67769), (598, 52130), (676, 46115), (802, 38870), (845, 36892), (1196, 26065), (1495, 20852), (1604, 19435), (1690, 18446), (2005, 15548), (2990, 10426), (3380, 9223), (3887, 8020), (4010, 7774), (5213, 5980)]