131304920

素因数分解:

$2^3\times 5^1\times {\mathrm{271}}^1\times {\mathrm{12113}}^1$

素因数の和:12395

約数の個数: 32

約数和(自身を含む): 296550720

約数和(自身を除く): 165245800

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 271, 542, 1084, 1355, 2168, 2710, 5420, 10840, 12113, 24226, 48452, 60565, 96904, 121130, 242260, 484520, 3282623, 6565246, 13130492, 16413115, 26260984, 32826230, 65652460, 131304920]

約数ペア:

[(1, 131304920), (2, 65652460), (4, 32826230), (5, 26260984), (8, 16413115), (10, 13130492), (20, 6565246), (40, 3282623), (271, 484520), (542, 242260), (1084, 121130), (1355, 96904), (2168, 60565), (2710, 48452), (5420, 24226), (10840, 12113)]