381186640

素因数分解:

$2^4\times 5^1\times {\mathrm{1229}}^1\times {\mathrm{3877}}^1$

素因数の和:5119

約数の個数: 40

約数和(自身を含む): 887208840

約数和(自身を除く): 506022200

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 1229, 2458, 3877, 4916, 6145, 7754, 9832, 12290, 15508, 19385, 19664, 24580, 31016, 38770, 49160, 62032, 77540, 98320, 155080, 310160, 4764833, 9529666, 19059332, 23824165, 38118664, 47648330, 76237328, 95296660, 190593320, 381186640]

約数ペア:

[(1, 381186640), (2, 190593320), (4, 95296660), (5, 76237328), (8, 47648330), (10, 38118664), (16, 23824165), (20, 19059332), (40, 9529666), (80, 4764833), (1229, 310160), (2458, 155080), (3877, 98320), (4916, 77540), (6145, 62032), (7754, 49160), (9832, 38770), (12290, 31016), (15508, 24580), (19385, 19664)]