31888240

素因数分解:

$2^4\times 5^1\times {\mathrm{277}}^1\times {\mathrm{1439}}^1$

素因数の和:1729

約数の個数: 40

約数和(自身を含む): 74459520

約数和(自身を除く): 42571280

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 277, 554, 1108, 1385, 1439, 2216, 2770, 2878, 4432, 5540, 5756, 7195, 11080, 11512, 14390, 22160, 23024, 28780, 57560, 115120, 398603, 797206, 1594412, 1993015, 3188824, 3986030, 6377648, 7972060, 15944120, 31888240]

約数ペア:

[(1, 31888240), (2, 15944120), (4, 7972060), (5, 6377648), (8, 3986030), (10, 3188824), (16, 1993015), (20, 1594412), (40, 797206), (80, 398603), (277, 115120), (554, 57560), (1108, 28780), (1385, 23024), (1439, 22160), (2216, 14390), (2770, 11512), (2878, 11080), (4432, 7195), (5540, 5756)]