2648620

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{61}}^1\times {\mathrm{167}}^1$

素因数の和:250

約数の個数: 48

約数和(自身を含む): 6124608

約数和(自身を除く): 3475988

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 61, 65, 122, 130, 167, 244, 260, 305, 334, 610, 668, 793, 835, 1220, 1586, 1670, 2171, 3172, 3340, 3965, 4342, 7930, 8684, 10187, 10855, 15860, 20374, 21710, 40748, 43420, 50935, 101870, 132431, 203740, 264862, 529724, 662155, 1324310, 2648620]

約数ペア:

[(1, 2648620), (2, 1324310), (4, 662155), (5, 529724), (10, 264862), (13, 203740), (20, 132431), (26, 101870), (52, 50935), (61, 43420), (65, 40748), (122, 21710), (130, 20374), (167, 15860), (244, 10855), (260, 10187), (305, 8684), (334, 7930), (610, 4342), (668, 3965), (793, 3340), (835, 3172), (1220, 2171), (1586, 1670)]