15999990

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{241}}^1\times {\mathrm{2213}}^1$

素因数の和:2464

約数の個数: 32

約数和(自身を含む): 38576736

約数和(自身を除く): 22576746

約数列:

[1, 2, 3, 5, 6, 10, 15, 30, 241, 482, 723, 1205, 1446, 2213, 2410, 3615, 4426, 6639, 7230, 11065, 13278, 22130, 33195, 66390, 533333, 1066666, 1599999, 2666665, 3199998, 5333330, 7999995, 15999990]

約数ペア:

[(1, 15999990), (2, 7999995), (3, 5333330), (5, 3199998), (6, 2666665), (10, 1599999), (15, 1066666), (30, 533333), (241, 66390), (482, 33195), (723, 22130), (1205, 13278), (1446, 11065), (2213, 7230), (2410, 6639), (3615, 4426)]