20528040505

素因数分解:

$5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{1697}}^1\times {\mathrm{11149}}^1$

素因数の和:12889

約数の個数: 32

約数和(自身を含む): 29080627200

約数和(自身を除く): 8552586695

約数列:

[1, 5, 7, 31, 35, 155, 217, 1085, 1697, 8485, 11149, 11879, 52607, 55745, 59395, 78043, 263035, 345619, 368249, 390215, 1728095, 1841245, 2419333, 12096665, 18919853, 94599265, 132438971, 586515443, 662194855, 2932577215, 4105608101, 20528040505]

約数ペア:

[(1, 20528040505), (5, 4105608101), (7, 2932577215), (31, 662194855), (35, 586515443), (155, 132438971), (217, 94599265), (1085, 18919853), (1697, 12096665), (8485, 2419333), (11149, 1841245), (11879, 1728095), (52607, 390215), (55745, 368249), (59395, 345619), (78043, 263035)]