20838530

素因数分解:

$2^1\times 5^1\times {\mathrm{29}}^1\times {\mathrm{181}}^1\times {\mathrm{397}}^1$

素因数の和:614

約数の個数: 32

約数和(自身を含む): 39115440

約数和(自身を除く): 18276910

約数列:

[1, 2, 5, 10, 29, 58, 145, 181, 290, 362, 397, 794, 905, 1810, 1985, 3970, 5249, 10498, 11513, 23026, 26245, 52490, 57565, 71857, 115130, 143714, 359285, 718570, 2083853, 4167706, 10419265, 20838530]

約数ペア:

[(1, 20838530), (2, 10419265), (5, 4167706), (10, 2083853), (29, 718570), (58, 359285), (145, 143714), (181, 115130), (290, 71857), (362, 57565), (397, 52490), (794, 26245), (905, 23026), (1810, 11513), (1985, 10498), (3970, 5249)]