31487640

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{257}}^1\times {\mathrm{1021}}^1$

素因数の和:1292

約数の個数: 64

約数和(自身を含む): 94923360

約数和(自身を除く): 63435720

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 60, 120, 257, 514, 771, 1021, 1028, 1285, 1542, 2042, 2056, 2570, 3063, 3084, 3855, 4084, 5105, 5140, 6126, 6168, 7710, 8168, 10210, 10280, 12252, 15315, 15420, 20420, 24504, 30630, 30840, 40840, 61260, 122520, 262397, 524794, 787191, 1049588, 1311985, 1574382, 2099176, 2623970, 3148764, 3935955, 5247940, 6297528, 7871910, 10495880, 15743820, 31487640]

約数ペア:

[(1, 31487640), (2, 15743820), (3, 10495880), (4, 7871910), (5, 6297528), (6, 5247940), (8, 3935955), (10, 3148764), (12, 2623970), (15, 2099176), (20, 1574382), (24, 1311985), (30, 1049588), (40, 787191), (60, 524794), (120, 262397), (257, 122520), (514, 61260), (771, 40840), (1021, 30840), (1028, 30630), (1285, 24504), (1542, 20420), (2042, 15420), (2056, 15315), (2570, 12252), (3063, 10280), (3084, 10210), (3855, 8168), (4084, 7710), (5105, 6168), (5140, 6126)]