20138039980

素因数分解:

$2^2\times 5^1\times {\mathrm{317}}^1\times {\mathrm{887}}^1\times {\mathrm{3581}}^1$

素因数の和:4794

約数の個数: 48

約数和(自身を含む): 42482978496

約数和(自身を除く): 22344938516

約数列:

[1, 2, 4, 5, 10, 20, 317, 634, 887, 1268, 1585, 1774, 3170, 3548, 3581, 4435, 6340, 7162, 8870, 14324, 17740, 17905, 35810, 71620, 281179, 562358, 1124716, 1135177, 1405895, 2270354, 2811790, 3176347, 4540708, 5623580, 5675885, 6352694, 11351770, 12705388, 15881735, 22703540, 31763470, 63526940, 1006901999, 2013803998, 4027607996, 5034509995, 10069019990, 20138039980]

約数ペア:

[(1, 20138039980), (2, 10069019990), (4, 5034509995), (5, 4027607996), (10, 2013803998), (20, 1006901999), (317, 63526940), (634, 31763470), (887, 22703540), (1268, 15881735), (1585, 12705388), (1774, 11351770), (3170, 6352694), (3548, 5675885), (3581, 5623580), (4435, 4540708), (6340, 3176347), (7162, 2811790), (8870, 2270354), (14324, 1405895), (17740, 1135177), (17905, 1124716), (35810, 562358), (71620, 281179)]