259804020

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{618581}}^1$

素因数の和:618600

約数の個数: 48

約数和(自身を含む): 831374208

約数和(自身を除く): 571570188

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, 618581, 1237162, 1855743, 2474324, 3092905, 3711486, 4330067, 6185810, 7422972, 8660134, 9278715, 12371620, 12990201, 17320268, 18557430, 21650335, 25980402, 37114860, 43300670, 51960804, 64951005, 86601340, 129902010, 259804020]

約数ペア:

[(1, 259804020), (2, 129902010), (3, 86601340), (4, 64951005), (5, 51960804), (6, 43300670), (7, 37114860), (10, 25980402), (12, 21650335), (14, 18557430), (15, 17320268), (20, 12990201), (21, 12371620), (28, 9278715), (30, 8660134), (35, 7422972), (42, 6185810), (60, 4330067), (70, 3711486), (84, 3092905), (105, 2474324), (140, 1855743), (210, 1237162), (420, 618581)]