312930020

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{53}}^1\times {\mathrm{22709}}^1$

素因数の和:22784

約数の個数: 48

約数和(自身を含む): 721087920

約数和(自身を除く): 408157900

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 53, 65, 106, 130, 212, 260, 265, 530, 689, 1060, 1378, 2756, 3445, 6890, 13780, 22709, 45418, 90836, 113545, 227090, 295217, 454180, 590434, 1180868, 1203577, 1476085, 2407154, 2952170, 4814308, 5904340, 6017885, 12035770, 15646501, 24071540, 31293002, 62586004, 78232505, 156465010, 312930020]

約数ペア:

[(1, 312930020), (2, 156465010), (4, 78232505), (5, 62586004), (10, 31293002), (13, 24071540), (20, 15646501), (26, 12035770), (52, 6017885), (53, 5904340), (65, 4814308), (106, 2952170), (130, 2407154), (212, 1476085), (260, 1203577), (265, 1180868), (530, 590434), (689, 454180), (1060, 295217), (1378, 227090), (2756, 113545), (3445, 90836), (6890, 45418), (13780, 22709)]