12939320

素因数分解:

$2^3\times 5^1\times {\mathrm{61}}^1\times {\mathrm{5303}}^1$

素因数の和:5375

約数の個数: 32

約数和(自身を含む): 29596320

約数和(自身を除く): 16657000

約数列:

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

約数ペア:

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