31999980

素因数分解:

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

素因数の和:2466

約数の個数: 48

約数和(自身を含む): 90012384

約数和(自身を除く): 58012404

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 241, 482, 723, 964, 1205, 1446, 2213, 2410, 2892, 3615, 4426, 4820, 6639, 7230, 8852, 11065, 13278, 14460, 22130, 26556, 33195, 44260, 66390, 132780, 533333, 1066666, 1599999, 2133332, 2666665, 3199998, 5333330, 6399996, 7999995, 10666660, 15999990, 31999980]

約数ペア:

[(1, 31999980), (2, 15999990), (3, 10666660), (4, 7999995), (5, 6399996), (6, 5333330), (10, 3199998), (12, 2666665), (15, 2133332), (20, 1599999), (30, 1066666), (60, 533333), (241, 132780), (482, 66390), (723, 44260), (964, 33195), (1205, 26556), (1446, 22130), (2213, 14460), (2410, 13278), (2892, 11065), (3615, 8852), (4426, 7230), (4820, 6639)]