74286640

素因数分解:

$2^4\times 5^1\times {\mathrm{397}}^1\times {\mathrm{2339}}^1$

素因数の和:2749

約数の個数: 40

約数和(自身を含む): 173225520

約数和(自身を除く): 98938880

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 397, 794, 1588, 1985, 2339, 3176, 3970, 4678, 6352, 7940, 9356, 11695, 15880, 18712, 23390, 31760, 37424, 46780, 93560, 187120, 928583, 1857166, 3714332, 4642915, 7428664, 9285830, 14857328, 18571660, 37143320, 74286640]

約数ペア:

[(1, 74286640), (2, 37143320), (4, 18571660), (5, 14857328), (8, 9285830), (10, 7428664), (16, 4642915), (20, 3714332), (40, 1857166), (80, 928583), (397, 187120), (794, 93560), (1588, 46780), (1985, 37424), (2339, 31760), (3176, 23390), (3970, 18712), (4678, 15880), (6352, 11695), (7940, 9356)]