205656620

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{61}}^1\times {\mathrm{12967}}^1$

素因数の和:13050

約数の個数: 48

約数和(自身を含む): 472761408

約数和(自身を除く): 267104788

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 61, 65, 122, 130, 244, 260, 305, 610, 793, 1220, 1586, 3172, 3965, 7930, 12967, 15860, 25934, 51868, 64835, 129670, 168571, 259340, 337142, 674284, 790987, 842855, 1581974, 1685710, 3163948, 3371420, 3954935, 7909870, 10282831, 15819740, 20565662, 41131324, 51414155, 102828310, 205656620]

約数ペア:

[(1, 205656620), (2, 102828310), (4, 51414155), (5, 41131324), (10, 20565662), (13, 15819740), (20, 10282831), (26, 7909870), (52, 3954935), (61, 3371420), (65, 3163948), (122, 1685710), (130, 1581974), (244, 842855), (260, 790987), (305, 674284), (610, 337142), (793, 259340), (1220, 168571), (1586, 129670), (3172, 64835), (3965, 51868), (7930, 25934), (12967, 15860)]