28516540

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{67}}^1\times {\mathrm{1637}}^1$

素因数の和:1726

約数の個数: 48

約数和(自身を含む): 65493792

約数和(自身を除く): 36977252

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 67, 130, 134, 260, 268, 335, 670, 871, 1340, 1637, 1742, 3274, 3484, 4355, 6548, 8185, 8710, 16370, 17420, 21281, 32740, 42562, 85124, 106405, 109679, 212810, 219358, 425620, 438716, 548395, 1096790, 1425827, 2193580, 2851654, 5703308, 7129135, 14258270, 28516540]

約数ペア:

[(1, 28516540), (2, 14258270), (4, 7129135), (5, 5703308), (10, 2851654), (13, 2193580), (20, 1425827), (26, 1096790), (52, 548395), (65, 438716), (67, 425620), (130, 219358), (134, 212810), (260, 109679), (268, 106405), (335, 85124), (670, 42562), (871, 32740), (1340, 21281), (1637, 17420), (1742, 16370), (3274, 8710), (3484, 8185), (4355, 6548)]