12739990

素因数分解:

$2^1\times 5^1\times {\mathrm{29}}^1\times {\mathrm{197}}^1\times {\mathrm{223}}^1$

素因数の和:456

約数の個数: 32

約数和(自身を含む): 23950080

約数和(自身を除く): 11210090

約数列:

[1, 2, 5, 10, 29, 58, 145, 197, 223, 290, 394, 446, 985, 1115, 1970, 2230, 5713, 6467, 11426, 12934, 28565, 32335, 43931, 57130, 64670, 87862, 219655, 439310, 1273999, 2547998, 6369995, 12739990]

約数ペア:

[(1, 12739990), (2, 6369995), (5, 2547998), (10, 1273999), (29, 439310), (58, 219655), (145, 87862), (197, 64670), (223, 57130), (290, 43931), (394, 32335), (446, 28565), (985, 12934), (1115, 11426), (1970, 6467), (2230, 5713)]