80425760

素因数分解:

$2^5\times 5^1\times {\mathrm{409}}^1\times {\mathrm{1229}}^1$

素因数の和:1653

約数の個数: 48

約数和(自身を含む): 190625400

約数和(自身を除く): 110199640

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 160, 409, 818, 1229, 1636, 2045, 2458, 3272, 4090, 4916, 6145, 6544, 8180, 9832, 12290, 13088, 16360, 19664, 24580, 32720, 39328, 49160, 65440, 98320, 196640, 502661, 1005322, 2010644, 2513305, 4021288, 5026610, 8042576, 10053220, 16085152, 20106440, 40212880, 80425760]

約数ペア:

[(1, 80425760), (2, 40212880), (4, 20106440), (5, 16085152), (8, 10053220), (10, 8042576), (16, 5026610), (20, 4021288), (32, 2513305), (40, 2010644), (80, 1005322), (160, 502661), (409, 196640), (818, 98320), (1229, 65440), (1636, 49160), (2045, 39328), (2458, 32720), (3272, 24580), (4090, 19664), (4916, 16360), (6145, 13088), (6544, 12290), (8180, 9832)]