28912420

素因数分解:

$2^2\times 5^1\times {\mathrm{29}}^1\times {\mathrm{79}}^1\times {\mathrm{631}}^1$

素因数の和:748

約数の個数: 48

約数和(自身を含む): 63705600

約数和(自身を除く): 34793180

約数列:

[1, 2, 4, 5, 10, 20, 29, 58, 79, 116, 145, 158, 290, 316, 395, 580, 631, 790, 1262, 1580, 2291, 2524, 3155, 4582, 6310, 9164, 11455, 12620, 18299, 22910, 36598, 45820, 49849, 73196, 91495, 99698, 182990, 199396, 249245, 365980, 498490, 996980, 1445621, 2891242, 5782484, 7228105, 14456210, 28912420]

約数ペア:

[(1, 28912420), (2, 14456210), (4, 7228105), (5, 5782484), (10, 2891242), (20, 1445621), (29, 996980), (58, 498490), (79, 365980), (116, 249245), (145, 199396), (158, 182990), (290, 99698), (316, 91495), (395, 73196), (580, 49849), (631, 45820), (790, 36598), (1262, 22910), (1580, 18299), (2291, 12620), (2524, 11455), (3155, 9164), (4582, 6310)]