255604020

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{608581}}^1$

素因数の和:608600

約数の個数: 48

約数和(自身を含む): 817934208

約数和(自身を除く): 562330188

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, 608581, 1217162, 1825743, 2434324, 3042905, 3651486, 4260067, 6085810, 7302972, 8520134, 9128715, 12171620, 12780201, 17040268, 18257430, 21300335, 25560402, 36514860, 42600670, 51120804, 63901005, 85201340, 127802010, 255604020]

約数ペア:

[(1, 255604020), (2, 127802010), (3, 85201340), (4, 63901005), (5, 51120804), (6, 42600670), (7, 36514860), (10, 25560402), (12, 21300335), (14, 18257430), (15, 17040268), (20, 12780201), (21, 12171620), (28, 9128715), (30, 8520134), (35, 7302972), (42, 6085810), (60, 4260067), (70, 3651486), (84, 3042905), (105, 2434324), (140, 1825743), (210, 1217162), (420, 608581)]