64923820

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{71}}^1\times {\mathrm{3517}}^1$

素因数の和:3610

約数の個数: 48

約数和(自身を含む): 148938048

約数和(自身を除く): 84014228

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 71, 130, 142, 260, 284, 355, 710, 923, 1420, 1846, 3517, 3692, 4615, 7034, 9230, 14068, 17585, 18460, 35170, 45721, 70340, 91442, 182884, 228605, 249707, 457210, 499414, 914420, 998828, 1248535, 2497070, 3246191, 4994140, 6492382, 12984764, 16230955, 32461910, 64923820]

約数ペア:

[(1, 64923820), (2, 32461910), (4, 16230955), (5, 12984764), (10, 6492382), (13, 4994140), (20, 3246191), (26, 2497070), (52, 1248535), (65, 998828), (71, 914420), (130, 499414), (142, 457210), (260, 249707), (284, 228605), (355, 182884), (710, 91442), (923, 70340), (1420, 45721), (1846, 35170), (3517, 18460), (3692, 17585), (4615, 14068), (7034, 9230)]