1231620

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{1579}}^1$

素因数の和:1604

約数の個数: 48

約数和(自身を含む): 3716160

約数和(自身を除く): 2484540

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 13, 15, 20, 26, 30, 39, 52, 60, 65, 78, 130, 156, 195, 260, 390, 780, 1579, 3158, 4737, 6316, 7895, 9474, 15790, 18948, 20527, 23685, 31580, 41054, 47370, 61581, 82108, 94740, 102635, 123162, 205270, 246324, 307905, 410540, 615810, 1231620]

約数ペア:

[(1, 1231620), (2, 615810), (3, 410540), (4, 307905), (5, 246324), (6, 205270), (10, 123162), (12, 102635), (13, 94740), (15, 82108), (20, 61581), (26, 47370), (30, 41054), (39, 31580), (52, 23685), (60, 20527), (65, 18948), (78, 15790), (130, 9474), (156, 7895), (195, 6316), (260, 4737), (390, 3158), (780, 1579)]