31239340

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{149}}^1\times {\mathrm{953}}^1$

素因数の和:1122

約数の個数: 48

約数和(自身を含む): 72122400

約数和(自身を除く): 40883060

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 149, 220, 298, 596, 745, 953, 1490, 1639, 1906, 2980, 3278, 3812, 4765, 6556, 8195, 9530, 10483, 16390, 19060, 20966, 32780, 41932, 52415, 104830, 141997, 209660, 283994, 567988, 709985, 1419970, 1561967, 2839940, 3123934, 6247868, 7809835, 15619670, 31239340]

約数ペア:

[(1, 31239340), (2, 15619670), (4, 7809835), (5, 6247868), (10, 3123934), (11, 2839940), (20, 1561967), (22, 1419970), (44, 709985), (55, 567988), (110, 283994), (149, 209660), (220, 141997), (298, 104830), (596, 52415), (745, 41932), (953, 32780), (1490, 20966), (1639, 19060), (1906, 16390), (2980, 10483), (3278, 9530), (3812, 8195), (4765, 6556)]