18129160

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{64747}}^1$

素因数の和:64765

約数の個数: 32

約数和(自身を含む): 46618560

約数和(自身を除く): 28489400

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 64747, 129494, 258988, 323735, 453229, 517976, 647470, 906458, 1294940, 1812916, 2266145, 2589880, 3625832, 4532290, 9064580, 18129160]

約数ペア:

[(1, 18129160), (2, 9064580), (4, 4532290), (5, 3625832), (7, 2589880), (8, 2266145), (10, 1812916), (14, 1294940), (20, 906458), (28, 647470), (35, 517976), (40, 453229), (56, 323735), (70, 258988), (140, 129494), (280, 64747)]