289090180

素因数分解:

$2^2\times 5^1\times {\mathrm{41}}^1\times {\mathrm{352549}}^1$

素因数の和:352599

約数の個数: 24

約数和(自身を含む): 621898200

約数和(自身を除く): 332808020

約数列:

[1, 2, 4, 5, 10, 20, 41, 82, 164, 205, 410, 820, 352549, 705098, 1410196, 1762745, 3525490, 7050980, 14454509, 28909018, 57818036, 72272545, 144545090, 289090180]

約数ペア:

[(1, 289090180), (2, 144545090), (4, 72272545), (5, 57818036), (10, 28909018), (20, 14454509), (41, 7050980), (82, 3525490), (164, 1762745), (205, 1410196), (410, 705098), (820, 352549)]