20911030

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{29}}^1\times {\mathrm{10301}}^1$

素因数の和:10344

約数の個数: 32

約数和(自身を含む): 44504640

約数和(自身を除く): 23593610

約数列:

[1, 2, 5, 7, 10, 14, 29, 35, 58, 70, 145, 203, 290, 406, 1015, 2030, 10301, 20602, 51505, 72107, 103010, 144214, 298729, 360535, 597458, 721070, 1493645, 2091103, 2987290, 4182206, 10455515, 20911030]

約数ペア:

[(1, 20911030), (2, 10455515), (5, 4182206), (7, 2987290), (10, 2091103), (14, 1493645), (29, 721070), (35, 597458), (58, 360535), (70, 298729), (145, 144214), (203, 103010), (290, 72107), (406, 51505), (1015, 20602), (2030, 10301)]