2009796620

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{397}}^1\times {\mathrm{19471}}^1$

素因数の和:19890

約数の個数: 48

約数和(自身を含む): 4556915328

約数和(自身を除く): 2547118708

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 397, 794, 1588, 1985, 3970, 5161, 7940, 10322, 19471, 20644, 25805, 38942, 51610, 77884, 97355, 103220, 194710, 253123, 389420, 506246, 1012492, 1265615, 2531230, 5062460, 7729987, 15459974, 30919948, 38649935, 77299870, 100489831, 154599740, 200979662, 401959324, 502449155, 1004898310, 2009796620]

約数ペア:

[(1, 2009796620), (2, 1004898310), (4, 502449155), (5, 401959324), (10, 200979662), (13, 154599740), (20, 100489831), (26, 77299870), (52, 38649935), (65, 30919948), (130, 15459974), (260, 7729987), (397, 5062460), (794, 2531230), (1588, 1265615), (1985, 1012492), (3970, 506246), (5161, 389420), (7940, 253123), (10322, 194710), (19471, 103220), (20644, 97355), (25805, 77884), (38942, 51610)]