31991280

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{7841}}^1$

素因数の和:7874

約数の個数: 80

約数和(自身を含む): 105020064

約数和(自身を除く): 73028784

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 17, 20, 24, 30, 34, 40, 48, 51, 60, 68, 80, 85, 102, 120, 136, 170, 204, 240, 255, 272, 340, 408, 510, 680, 816, 1020, 1360, 2040, 4080, 7841, 15682, 23523, 31364, 39205, 47046, 62728, 78410, 94092, 117615, 125456, 133297, 156820, 188184, 235230, 266594, 313640, 376368, 399891, 470460, 533188, 627280, 666485, 799782, 940920, 1066376, 1332970, 1599564, 1881840, 1999455, 2132752, 2665940, 3199128, 3998910, 5331880, 6398256, 7997820, 10663760, 15995640, 31991280]

約数ペア:

[(1, 31991280), (2, 15995640), (3, 10663760), (4, 7997820), (5, 6398256), (6, 5331880), (8, 3998910), (10, 3199128), (12, 2665940), (15, 2132752), (16, 1999455), (17, 1881840), (20, 1599564), (24, 1332970), (30, 1066376), (34, 940920), (40, 799782), (48, 666485), (51, 627280), (60, 533188), (68, 470460), (80, 399891), (85, 376368), (102, 313640), (120, 266594), (136, 235230), (170, 188184), (204, 156820), (240, 133297), (255, 125456), (272, 117615), (340, 94092), (408, 78410), (510, 62728), (680, 47046), (816, 39205), (1020, 31364), (1360, 23523), (2040, 15682), (4080, 7841)]