20007772

素因数分解:

$2^2\times {\mathrm{31}}^1\times {\mathrm{317}}^1\times {\mathrm{509}}^1$

素因数の和:861

約数の個数: 24

約数和(自身を含む): 36328320

約数和(自身を除く): 16320548

約数列:

[1, 2, 4, 31, 62, 124, 317, 509, 634, 1018, 1268, 2036, 9827, 15779, 19654, 31558, 39308, 63116, 161353, 322706, 645412, 5001943, 10003886, 20007772]

約数ペア:

[(1, 20007772), (2, 10003886), (4, 5001943), (31, 645412), (62, 322706), (124, 161353), (317, 63116), (509, 39308), (634, 31558), (1018, 19654), (1268, 15779), (2036, 9827)]