1520802020

素因数分解:

$2^2\times 5^1\times {\mathrm{223}}^1\times {\mathrm{277}}^1\times {\mathrm{1231}}^1$

素因数の和:1740

約数の個数: 48

約数和(自身を含む): 3222202368

約数和(自身を除く): 1701400348

約数列:

[1, 2, 4, 5, 10, 20, 223, 277, 446, 554, 892, 1108, 1115, 1231, 1385, 2230, 2462, 2770, 4460, 4924, 5540, 6155, 12310, 24620, 61771, 123542, 247084, 274513, 308855, 340987, 549026, 617710, 681974, 1098052, 1235420, 1363948, 1372565, 1704935, 2745130, 3409870, 5490260, 6819740, 76040101, 152080202, 304160404, 380200505, 760401010, 1520802020]

約数ペア:

[(1, 1520802020), (2, 760401010), (4, 380200505), (5, 304160404), (10, 152080202), (20, 76040101), (223, 6819740), (277, 5490260), (446, 3409870), (554, 2745130), (892, 1704935), (1108, 1372565), (1115, 1363948), (1231, 1235420), (1385, 1098052), (2230, 681974), (2462, 617710), (2770, 549026), (4460, 340987), (4924, 308855), (5540, 274513), (6155, 247084), (12310, 123542), (24620, 61771)]