31246760

素因数分解:

$2^3\times 5^1\times {\mathrm{31}}^1\times {\mathrm{113}}^1\times {\mathrm{223}}^1$

素因数の和:378

約数の個数: 64

約数和(自身を含む): 73543680

約数和(自身を除く): 42296920

約数列:

[1, 2, 4, 5, 8, 10, 20, 31, 40, 62, 113, 124, 155, 223, 226, 248, 310, 446, 452, 565, 620, 892, 904, 1115, 1130, 1240, 1784, 2230, 2260, 3503, 4460, 4520, 6913, 7006, 8920, 13826, 14012, 17515, 25199, 27652, 28024, 34565, 35030, 50398, 55304, 69130, 70060, 100796, 125995, 138260, 140120, 201592, 251990, 276520, 503980, 781169, 1007960, 1562338, 3124676, 3905845, 6249352, 7811690, 15623380, 31246760]

約数ペア:

[(1, 31246760), (2, 15623380), (4, 7811690), (5, 6249352), (8, 3905845), (10, 3124676), (20, 1562338), (31, 1007960), (40, 781169), (62, 503980), (113, 276520), (124, 251990), (155, 201592), (223, 140120), (226, 138260), (248, 125995), (310, 100796), (446, 70060), (452, 69130), (565, 55304), (620, 50398), (892, 35030), (904, 34565), (1115, 28024), (1130, 27652), (1240, 25199), (1784, 17515), (2230, 14012), (2260, 13826), (3503, 8920), (4460, 7006), (4520, 6913)]