2491620

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{131}}^1\times {\mathrm{317}}^1$

素因数の和:460

約数の個数: 48

約数和(自身を含む): 7051968

約数和(自身を除く): 4560348

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 131, 262, 317, 393, 524, 634, 655, 786, 951, 1268, 1310, 1572, 1585, 1902, 1965, 2620, 3170, 3804, 3930, 4755, 6340, 7860, 9510, 19020, 41527, 83054, 124581, 166108, 207635, 249162, 415270, 498324, 622905, 830540, 1245810, 2491620]

約数ペア:

[(1, 2491620), (2, 1245810), (3, 830540), (4, 622905), (5, 498324), (6, 415270), (10, 249162), (12, 207635), (15, 166108), (20, 124581), (30, 83054), (60, 41527), (131, 19020), (262, 9510), (317, 7860), (393, 6340), (524, 4755), (634, 3930), (655, 3804), (786, 3170), (951, 2620), (1268, 1965), (1310, 1902), (1572, 1585)]