31426020

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{71}}^1\times {\mathrm{2459}}^1$

素因数の和:2545

約数の個数: 72

約数和(自身を含む): 96707520

約数和(自身を除く): 65281500

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 71, 90, 142, 180, 213, 284, 355, 426, 639, 710, 852, 1065, 1278, 1420, 2130, 2459, 2556, 3195, 4260, 4918, 6390, 7377, 9836, 12295, 12780, 14754, 22131, 24590, 29508, 36885, 44262, 49180, 73770, 88524, 110655, 147540, 174589, 221310, 349178, 442620, 523767, 698356, 872945, 1047534, 1571301, 1745890, 2095068, 2618835, 3142602, 3491780, 5237670, 6285204, 7856505, 10475340, 15713010, 31426020]

約数ペア:

[(1, 31426020), (2, 15713010), (3, 10475340), (4, 7856505), (5, 6285204), (6, 5237670), (9, 3491780), (10, 3142602), (12, 2618835), (15, 2095068), (18, 1745890), (20, 1571301), (30, 1047534), (36, 872945), (45, 698356), (60, 523767), (71, 442620), (90, 349178), (142, 221310), (180, 174589), (213, 147540), (284, 110655), (355, 88524), (426, 73770), (639, 49180), (710, 44262), (852, 36885), (1065, 29508), (1278, 24590), (1420, 22131), (2130, 14754), (2459, 12780), (2556, 12295), (3195, 9836), (4260, 7377), (4918, 6390)]