12837890

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{37}}^1\times {\mathrm{157}}^1$

素因数の和:231

約数の個数: 64

約数和(自身を含む): 27234144

約数和(自身を除く): 14396254

約数列:

[1, 2, 5, 10, 13, 17, 26, 34, 37, 65, 74, 85, 130, 157, 170, 185, 221, 314, 370, 442, 481, 629, 785, 962, 1105, 1258, 1570, 2041, 2210, 2405, 2669, 3145, 4082, 4810, 5338, 5809, 6290, 8177, 10205, 11618, 13345, 16354, 20410, 26690, 29045, 34697, 40885, 58090, 69394, 75517, 81770, 98753, 151034, 173485, 197506, 346970, 377585, 493765, 755170, 987530, 1283789, 2567578, 6418945, 12837890]

約数ペア:

[(1, 12837890), (2, 6418945), (5, 2567578), (10, 1283789), (13, 987530), (17, 755170), (26, 493765), (34, 377585), (37, 346970), (65, 197506), (74, 173485), (85, 151034), (130, 98753), (157, 81770), (170, 75517), (185, 69394), (221, 58090), (314, 40885), (370, 34697), (442, 29045), (481, 26690), (629, 20410), (785, 16354), (962, 13345), (1105, 11618), (1258, 10205), (1570, 8177), (2041, 6290), (2210, 5809), (2405, 5338), (2669, 4810), (3145, 4082)]