31896080

素因数分解:

$2^4\times 5^1\times {\mathrm{17}}^1\times {\mathrm{47}}^1\times {\mathrm{499}}^1$

素因数の和:576

約数の個数: 80

約数和(自身を含む): 80352000

約数和(自身を除く): 48455920

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 34, 40, 47, 68, 80, 85, 94, 136, 170, 188, 235, 272, 340, 376, 470, 499, 680, 752, 799, 940, 998, 1360, 1598, 1880, 1996, 2495, 3196, 3760, 3992, 3995, 4990, 6392, 7984, 7990, 8483, 9980, 12784, 15980, 16966, 19960, 23453, 31960, 33932, 39920, 42415, 46906, 63920, 67864, 84830, 93812, 117265, 135728, 169660, 187624, 234530, 339320, 375248, 398701, 469060, 678640, 797402, 938120, 1594804, 1876240, 1993505, 3189608, 3987010, 6379216, 7974020, 15948040, 31896080]

約数ペア:

[(1, 31896080), (2, 15948040), (4, 7974020), (5, 6379216), (8, 3987010), (10, 3189608), (16, 1993505), (17, 1876240), (20, 1594804), (34, 938120), (40, 797402), (47, 678640), (68, 469060), (80, 398701), (85, 375248), (94, 339320), (136, 234530), (170, 187624), (188, 169660), (235, 135728), (272, 117265), (340, 93812), (376, 84830), (470, 67864), (499, 63920), (680, 46906), (752, 42415), (799, 39920), (940, 33932), (998, 31960), (1360, 23453), (1598, 19960), (1880, 16966), (1996, 15980), (2495, 12784), (3196, 9980), (3760, 8483), (3992, 7990), (3995, 7984), (4990, 6392)]