120721220

素因数分解:

$2^2\times 5^1\times {\mathrm{41}}^1\times {\mathrm{147221}}^1$

素因数の和:147271

約数の個数: 24

約数和(自身を含む): 259699608

約数和(自身を除く): 138978388

約数列:

[1, 2, 4, 5, 10, 20, 41, 82, 164, 205, 410, 820, 147221, 294442, 588884, 736105, 1472210, 2944420, 6036061, 12072122, 24144244, 30180305, 60360610, 120721220]

約数ペア:

[(1, 120721220), (2, 60360610), (4, 30180305), (5, 24144244), (10, 12072122), (20, 6036061), (41, 2944420), (82, 1472210), (164, 736105), (205, 588884), (410, 294442), (820, 147221)]