20534620

素因数分解:

$2^2\times 5^1\times {\mathrm{71}}^1\times {\mathrm{14461}}^1$

素因数の和:14541

約数の個数: 24

約数和(自身を含む): 43733088

約数和(自身を除く): 23198468

約数列:

[1, 2, 4, 5, 10, 20, 71, 142, 284, 355, 710, 1420, 14461, 28922, 57844, 72305, 144610, 289220, 1026731, 2053462, 4106924, 5133655, 10267310, 20534620]

約数ペア:

[(1, 20534620), (2, 10267310), (4, 5133655), (5, 4106924), (10, 2053462), (20, 1026731), (71, 289220), (142, 144610), (284, 72305), (355, 57844), (710, 28922), (1420, 14461)]