25878640

素因数分解:

$2^4\times 5^1\times {\mathrm{61}}^1\times {\mathrm{5303}}^1$

素因数の和:5377

約数の個数: 40

約数和(自身を含む): 61165728

約数和(自身を除く): 35287088

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 61, 80, 122, 244, 305, 488, 610, 976, 1220, 2440, 4880, 5303, 10606, 21212, 26515, 42424, 53030, 84848, 106060, 212120, 323483, 424240, 646966, 1293932, 1617415, 2587864, 3234830, 5175728, 6469660, 12939320, 25878640]

約数ペア:

[(1, 25878640), (2, 12939320), (4, 6469660), (5, 5175728), (8, 3234830), (10, 2587864), (16, 1617415), (20, 1293932), (40, 646966), (61, 424240), (80, 323483), (122, 212120), (244, 106060), (305, 84848), (488, 53030), (610, 42424), (976, 26515), (1220, 21212), (2440, 10606), (4880, 5303)]