83640068

素因数分解:

$2^2\times {\mathrm{17}}^2\times {\mathrm{72353}}^1$

素因数の和:72391

約数の個数: 18

約数和(自身を含む): 155488746

約数和(自身を除く): 71848678

約数列:

[1, 2, 4, 17, 34, 68, 289, 578, 1156, 72353, 144706, 289412, 1230001, 2460002, 4920004, 20910017, 41820034, 83640068]

約数ペア:

[(1, 83640068), (2, 41820034), (4, 20910017), (17, 4920004), (34, 2460002), (68, 1230001), (289, 289412), (578, 144706), (1156, 72353)]