15720930

素因数分解:

$2^1\times 3^2\times 5^1\times {\mathrm{37}}^1\times {\mathrm{4721}}^1$

素因数の和:4771

約数の個数: 48

約数和(自身を含む): 41988024

約数和(自身を除く): 26267094

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 30, 37, 45, 74, 90, 111, 185, 222, 333, 370, 555, 666, 1110, 1665, 3330, 4721, 9442, 14163, 23605, 28326, 42489, 47210, 70815, 84978, 141630, 174677, 212445, 349354, 424890, 524031, 873385, 1048062, 1572093, 1746770, 2620155, 3144186, 5240310, 7860465, 15720930]

約数ペア:

[(1, 15720930), (2, 7860465), (3, 5240310), (5, 3144186), (6, 2620155), (9, 1746770), (10, 1572093), (15, 1048062), (18, 873385), (30, 524031), (37, 424890), (45, 349354), (74, 212445), (90, 174677), (111, 141630), (185, 84978), (222, 70815), (333, 47210), (370, 42489), (555, 28326), (666, 23605), (1110, 14163), (1665, 9442), (3330, 4721)]