123457360

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{118709}}^1$

素因数の和:118735

約数の個数: 40

約数和(自身を含む): 309120840

約数和(自身を除く): 185663480

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 40, 52, 65, 80, 104, 130, 208, 260, 520, 1040, 118709, 237418, 474836, 593545, 949672, 1187090, 1543217, 1899344, 2374180, 3086434, 4748360, 6172868, 7716085, 9496720, 12345736, 15432170, 24691472, 30864340, 61728680, 123457360]

約数ペア:

[(1, 123457360), (2, 61728680), (4, 30864340), (5, 24691472), (8, 15432170), (10, 12345736), (13, 9496720), (16, 7716085), (20, 6172868), (26, 4748360), (40, 3086434), (52, 2374180), (65, 1899344), (80, 1543217), (104, 1187090), (130, 949672), (208, 593545), (260, 474836), (520, 237418), (1040, 118709)]