405915770

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{73}}^1\times {\mathrm{42773}}^1$

素因数の和:42866

約数の個数: 32

約数和(自身を含む): 797649552

約数和(自身を除く): 391733782

約数列:

[1, 2, 5, 10, 13, 26, 65, 73, 130, 146, 365, 730, 949, 1898, 4745, 9490, 42773, 85546, 213865, 427730, 556049, 1112098, 2780245, 3122429, 5560490, 6244858, 15612145, 31224290, 40591577, 81183154, 202957885, 405915770]

約数ペア:

[(1, 405915770), (2, 202957885), (5, 81183154), (10, 40591577), (13, 31224290), (26, 15612145), (65, 6244858), (73, 5560490), (130, 3122429), (146, 2780245), (365, 1112098), (730, 556049), (949, 427730), (1898, 213865), (4745, 85546), (9490, 42773)]