20519371355

素因数分解:

$5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{853}}^1\times {\mathrm{22171}}^1$

素因数の和:23067

約数の個数: 32

約数和(自身を含む): 29083987968

約数和(自身を除く): 8564616613

約数列:

[1, 5, 7, 31, 35, 155, 217, 853, 1085, 4265, 5971, 22171, 26443, 29855, 110855, 132215, 155197, 185101, 687301, 775985, 925505, 3436505, 4811107, 18911863, 24055535, 94559315, 132383041, 586267753, 661915205, 2931338765, 4103874271, 20519371355]

約数ペア:

[(1, 20519371355), (5, 4103874271), (7, 2931338765), (31, 661915205), (35, 586267753), (155, 132383041), (217, 94559315), (853, 24055535), (1085, 18911863), (4265, 4811107), (5971, 3436505), (22171, 925505), (26443, 775985), (29855, 687301), (110855, 185101), (132215, 155197)]