31978830

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{167}}^1\times {\mathrm{491}}^1$

素因数の和:681

約数の個数: 64

約数和(自身を含む): 83317248

約数和(自身を除く): 51338418

約数列:

[1, 2, 3, 5, 6, 10, 13, 15, 26, 30, 39, 65, 78, 130, 167, 195, 334, 390, 491, 501, 835, 982, 1002, 1473, 1670, 2171, 2455, 2505, 2946, 4342, 4910, 5010, 6383, 6513, 7365, 10855, 12766, 13026, 14730, 19149, 21710, 31915, 32565, 38298, 63830, 65130, 81997, 95745, 163994, 191490, 245991, 409985, 491982, 819970, 1065961, 1229955, 2131922, 2459910, 3197883, 5329805, 6395766, 10659610, 15989415, 31978830]

約数ペア:

[(1, 31978830), (2, 15989415), (3, 10659610), (5, 6395766), (6, 5329805), (10, 3197883), (13, 2459910), (15, 2131922), (26, 1229955), (30, 1065961), (39, 819970), (65, 491982), (78, 409985), (130, 245991), (167, 191490), (195, 163994), (334, 95745), (390, 81997), (491, 65130), (501, 63830), (835, 38298), (982, 32565), (1002, 31915), (1473, 21710), (1670, 19149), (2171, 14730), (2455, 13026), (2505, 12766), (2946, 10855), (4342, 7365), (4910, 6513), (5010, 6383)]