121997980

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{23}}^2\times {\mathrm{887}}^1$

素因数の和:955

約数の個数: 72

約数和(自身を含む): 288745632

約数和(自身を除く): 166747652

約数列:

[1, 2, 4, 5, 10, 13, 20, 23, 26, 46, 52, 65, 92, 115, 130, 230, 260, 299, 460, 529, 598, 887, 1058, 1196, 1495, 1774, 2116, 2645, 2990, 3548, 4435, 5290, 5980, 6877, 8870, 10580, 11531, 13754, 17740, 20401, 23062, 27508, 34385, 40802, 46124, 57655, 68770, 81604, 102005, 115310, 137540, 204010, 230620, 265213, 408020, 469223, 530426, 938446, 1060852, 1326065, 1876892, 2346115, 2652130, 4692230, 5304260, 6099899, 9384460, 12199798, 24399596, 30499495, 60998990, 121997980]

約数ペア:

[(1, 121997980), (2, 60998990), (4, 30499495), (5, 24399596), (10, 12199798), (13, 9384460), (20, 6099899), (23, 5304260), (26, 4692230), (46, 2652130), (52, 2346115), (65, 1876892), (92, 1326065), (115, 1060852), (130, 938446), (230, 530426), (260, 469223), (299, 408020), (460, 265213), (529, 230620), (598, 204010), (887, 137540), (1058, 115310), (1196, 102005), (1495, 81604), (1774, 68770), (2116, 57655), (2645, 46124), (2990, 40802), (3548, 34385), (4435, 27508), (5290, 23062), (5980, 20401), (6877, 17740), (8870, 13754), (10580, 11531)]