646230

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{1657}}^1$

素因数の和:1680

約数の個数: 32

約数和(自身を含む): 1671264

約数和(自身を除く): 1025034

約数列:

[1, 2, 3, 5, 6, 10, 13, 15, 26, 30, 39, 65, 78, 130, 195, 390, 1657, 3314, 4971, 8285, 9942, 16570, 21541, 24855, 43082, 49710, 64623, 107705, 129246, 215410, 323115, 646230]

約数ペア:

[(1, 646230), (2, 323115), (3, 215410), (5, 129246), (6, 107705), (10, 64623), (13, 49710), (15, 43082), (26, 24855), (30, 21541), (39, 16570), (65, 9942), (78, 8285), (130, 4971), (195, 3314), (390, 1657)]