17987480

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{227}}^1\times {\mathrm{283}}^1$

素因数の和:528

約数の個数: 64

約数和(自身を含む): 46621440

約数和(自身を除く): 28633960

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 227, 280, 283, 454, 566, 908, 1132, 1135, 1415, 1589, 1816, 1981, 2264, 2270, 2830, 3178, 3962, 4540, 5660, 6356, 7924, 7945, 9080, 9905, 11320, 12712, 15848, 15890, 19810, 31780, 39620, 63560, 64241, 79240, 128482, 256964, 321205, 449687, 513928, 642410, 899374, 1284820, 1798748, 2248435, 2569640, 3597496, 4496870, 8993740, 17987480]

約数ペア:

[(1, 17987480), (2, 8993740), (4, 4496870), (5, 3597496), (7, 2569640), (8, 2248435), (10, 1798748), (14, 1284820), (20, 899374), (28, 642410), (35, 513928), (40, 449687), (56, 321205), (70, 256964), (140, 128482), (227, 79240), (280, 64241), (283, 63560), (454, 39620), (566, 31780), (908, 19810), (1132, 15890), (1135, 15848), (1415, 12712), (1589, 11320), (1816, 9905), (1981, 9080), (2264, 7945), (2270, 7924), (2830, 6356), (3178, 5660), (3962, 4540)]