400946520

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{257017}}^1$

素因数の和:257044

約数の個数: 64

約数和(自身を含む): 1295370720

約数和(自身を除く): 894424200

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 13, 15, 20, 24, 26, 30, 39, 40, 52, 60, 65, 78, 104, 120, 130, 156, 195, 260, 312, 390, 520, 780, 1560, 257017, 514034, 771051, 1028068, 1285085, 1542102, 2056136, 2570170, 3084204, 3341221, 3855255, 5140340, 6168408, 6682442, 7710510, 10023663, 10280680, 13364884, 15421020, 16706105, 20047326, 26729768, 30842040, 33412210, 40094652, 50118315, 66824420, 80189304, 100236630, 133648840, 200473260, 400946520]

約数ペア:

[(1, 400946520), (2, 200473260), (3, 133648840), (4, 100236630), (5, 80189304), (6, 66824420), (8, 50118315), (10, 40094652), (12, 33412210), (13, 30842040), (15, 26729768), (20, 20047326), (24, 16706105), (26, 15421020), (30, 13364884), (39, 10280680), (40, 10023663), (52, 7710510), (60, 6682442), (65, 6168408), (78, 5140340), (104, 3855255), (120, 3341221), (130, 3084204), (156, 2570170), (195, 2056136), (260, 1542102), (312, 1285085), (390, 1028068), (520, 771051), (780, 514034), (1560, 257017)]