31903140

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{71}}^1\times {\mathrm{7489}}^1$

素因数の和:7572

約数の個数: 48

約数和(自身を含む): 90599040

約数和(自身を除く): 58695900

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 71, 142, 213, 284, 355, 426, 710, 852, 1065, 1420, 2130, 4260, 7489, 14978, 22467, 29956, 37445, 44934, 74890, 89868, 112335, 149780, 224670, 449340, 531719, 1063438, 1595157, 2126876, 2658595, 3190314, 5317190, 6380628, 7975785, 10634380, 15951570, 31903140]

約数ペア:

[(1, 31903140), (2, 15951570), (3, 10634380), (4, 7975785), (5, 6380628), (6, 5317190), (10, 3190314), (12, 2658595), (15, 2126876), (20, 1595157), (30, 1063438), (60, 531719), (71, 449340), (142, 224670), (213, 149780), (284, 112335), (355, 89868), (426, 74890), (710, 44934), (852, 37445), (1065, 29956), (1420, 22467), (2130, 14978), (4260, 7489)]