64669940

素因数分解:

$2^2\times 5^1\times {\mathrm{241}}^1\times {\mathrm{13417}}^1$

素因数の和:13667

約数の個数: 24

約数和(自身を含む): 136380552

約数和(自身を除く): 71710612

約数列:

[1, 2, 4, 5, 10, 20, 241, 482, 964, 1205, 2410, 4820, 13417, 26834, 53668, 67085, 134170, 268340, 3233497, 6466994, 12933988, 16167485, 32334970, 64669940]

約数ペア:

[(1, 64669940), (2, 32334970), (4, 16167485), (5, 12933988), (10, 6466994), (20, 3233497), (241, 268340), (482, 134170), (964, 67085), (1205, 53668), (2410, 26834), (4820, 13417)]