31672360

素因数分解:

$2^3\times 5^1\times {\mathrm{17}}^1\times {\mathrm{47}}^1\times {\mathrm{991}}^1$

素因数の和:1066

約数の個数: 64

約数和(自身を含む): 77137920

約数和(自身を除く): 45465560

約数列:

[1, 2, 4, 5, 8, 10, 17, 20, 34, 40, 47, 68, 85, 94, 136, 170, 188, 235, 340, 376, 470, 680, 799, 940, 991, 1598, 1880, 1982, 3196, 3964, 3995, 4955, 6392, 7928, 7990, 9910, 15980, 16847, 19820, 31960, 33694, 39640, 46577, 67388, 84235, 93154, 134776, 168470, 186308, 232885, 336940, 372616, 465770, 673880, 791809, 931540, 1583618, 1863080, 3167236, 3959045, 6334472, 7918090, 15836180, 31672360]

約数ペア:

[(1, 31672360), (2, 15836180), (4, 7918090), (5, 6334472), (8, 3959045), (10, 3167236), (17, 1863080), (20, 1583618), (34, 931540), (40, 791809), (47, 673880), (68, 465770), (85, 372616), (94, 336940), (136, 232885), (170, 186308), (188, 168470), (235, 134776), (340, 93154), (376, 84235), (470, 67388), (680, 46577), (799, 39640), (940, 33694), (991, 31960), (1598, 19820), (1880, 16847), (1982, 15980), (3196, 9910), (3964, 7990), (3995, 7928), (4955, 6392)]