64720740

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{154097}}^1$

素因数の和:154116

約数の個数: 48

約数和(自身を含む): 207107712

約数和(自身を除く): 142386972

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, 154097, 308194, 462291, 616388, 770485, 924582, 1078679, 1540970, 1849164, 2157358, 2311455, 3081940, 3236037, 4314716, 4622910, 5393395, 6472074, 9245820, 10786790, 12944148, 16180185, 21573580, 32360370, 64720740]

約数ペア:

[(1, 64720740), (2, 32360370), (3, 21573580), (4, 16180185), (5, 12944148), (6, 10786790), (7, 9245820), (10, 6472074), (12, 5393395), (14, 4622910), (15, 4314716), (20, 3236037), (21, 3081940), (28, 2311455), (30, 2157358), (35, 1849164), (42, 1540970), (60, 1078679), (70, 924582), (84, 770485), (105, 616388), (140, 462291), (210, 308194), (420, 154097)]