657420660

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{280949}}^1$

素因数の和:280977

約数の個数: 72

約数和(自身を含む): 2147581800

約数和(自身を除く): 1490161140

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 13, 15, 18, 20, 26, 30, 36, 39, 45, 52, 60, 65, 78, 90, 117, 130, 156, 180, 195, 234, 260, 390, 468, 585, 780, 1170, 2340, 280949, 561898, 842847, 1123796, 1404745, 1685694, 2528541, 2809490, 3371388, 3652337, 4214235, 5057082, 5618980, 7304674, 8428470, 10114164, 10957011, 12642705, 14609348, 16856940, 18261685, 21914022, 25285410, 32871033, 36523370, 43828044, 50570820, 54785055, 65742066, 73046740, 109570110, 131484132, 164355165, 219140220, 328710330, 657420660]

約数ペア:

[(1, 657420660), (2, 328710330), (3, 219140220), (4, 164355165), (5, 131484132), (6, 109570110), (9, 73046740), (10, 65742066), (12, 54785055), (13, 50570820), (15, 43828044), (18, 36523370), (20, 32871033), (26, 25285410), (30, 21914022), (36, 18261685), (39, 16856940), (45, 14609348), (52, 12642705), (60, 10957011), (65, 10114164), (78, 8428470), (90, 7304674), (117, 5618980), (130, 5057082), (156, 4214235), (180, 3652337), (195, 3371388), (234, 2809490), (260, 2528541), (390, 1685694), (468, 1404745), (585, 1123796), (780, 842847), (1170, 561898), (2340, 280949)]