12801990

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{389}}^1\times {\mathrm{1097}}^1$

素因数の和:1496

約数の個数: 32

約数和(自身を含む): 30831840

約数和(自身を除く): 18029850

約数列:

[1, 2, 3, 5, 6, 10, 15, 30, 389, 778, 1097, 1167, 1945, 2194, 2334, 3291, 3890, 5485, 5835, 6582, 10970, 11670, 16455, 32910, 426733, 853466, 1280199, 2133665, 2560398, 4267330, 6400995, 12801990]

約数ペア:

[(1, 12801990), (2, 6400995), (3, 4267330), (5, 2560398), (6, 2133665), (10, 1280199), (15, 853466), (30, 426733), (389, 32910), (778, 16455), (1097, 11670), (1167, 10970), (1945, 6582), (2194, 5835), (2334, 5485), (3291, 3890)]