645406860

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{1536683}}^1$

素因数の和:1536702

約数の個数: 48

約数和(自身を含む): 2065303296

約数和(自身を除く): 1419896436

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 60, 70, 84, 105, 140, 210, 420, 1536683, 3073366, 4610049, 6146732, 7683415, 9220098, 10756781, 15366830, 18440196, 21513562, 23050245, 30733660, 32270343, 43027124, 46100490, 53783905, 64540686, 92200980, 107567810, 129081372, 161351715, 215135620, 322703430, 645406860]

約数ペア:

[(1, 645406860), (2, 322703430), (3, 215135620), (4, 161351715), (5, 129081372), (6, 107567810), (7, 92200980), (10, 64540686), (12, 53783905), (14, 46100490), (15, 43027124), (20, 32270343), (21, 30733660), (28, 23050245), (30, 21513562), (35, 18440196), (42, 15366830), (60, 10756781), (70, 9220098), (84, 7683415), (105, 6146732), (140, 4610049), (210, 3073366), (420, 1536683)]