66616420

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^2\times {\mathrm{19709}}^1$

素因数の和:19744

約数の個数: 36

約数和(自身を含む): 151491060

約数和(自身を除く): 84874640

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 169, 260, 338, 676, 845, 1690, 3380, 19709, 39418, 78836, 98545, 197090, 256217, 394180, 512434, 1024868, 1281085, 2562170, 3330821, 5124340, 6661642, 13323284, 16654105, 33308210, 66616420]

約数ペア:

[(1, 66616420), (2, 33308210), (4, 16654105), (5, 13323284), (10, 6661642), (13, 5124340), (20, 3330821), (26, 2562170), (52, 1281085), (65, 1024868), (130, 512434), (169, 394180), (260, 256217), (338, 197090), (676, 98545), (845, 78836), (1690, 39418), (3380, 19709)]