28262260

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{71}}^1\times {\mathrm{1531}}^1$

素因数の和:1624

約数の個数: 48

約数和(自身を含む): 64858752

約数和(自身を除く): 36596492

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 71, 130, 142, 260, 284, 355, 710, 923, 1420, 1531, 1846, 3062, 3692, 4615, 6124, 7655, 9230, 15310, 18460, 19903, 30620, 39806, 79612, 99515, 108701, 199030, 217402, 398060, 434804, 543505, 1087010, 1413113, 2174020, 2826226, 5652452, 7065565, 14131130, 28262260]

約数ペア:

[(1, 28262260), (2, 14131130), (4, 7065565), (5, 5652452), (10, 2826226), (13, 2174020), (20, 1413113), (26, 1087010), (52, 543505), (65, 434804), (71, 398060), (130, 217402), (142, 199030), (260, 108701), (284, 99515), (355, 79612), (710, 39806), (923, 30620), (1420, 19903), (1531, 18460), (1846, 15310), (3062, 9230), (3692, 7655), (4615, 6124)]