20155270

素因数分解:

$2^1\times 5^1\times {\mathrm{31}}^1\times {\mathrm{79}}^1\times {\mathrm{823}}^1$

素因数の和:940

約数の個数: 32

約数和(自身を含む): 37969920

約数和(自身を除く): 17814650

約数列:

[1, 2, 5, 10, 31, 62, 79, 155, 158, 310, 395, 790, 823, 1646, 2449, 4115, 4898, 8230, 12245, 24490, 25513, 51026, 65017, 127565, 130034, 255130, 325085, 650170, 2015527, 4031054, 10077635, 20155270]

約数ペア:

[(1, 20155270), (2, 10077635), (5, 4031054), (10, 2015527), (31, 650170), (62, 325085), (79, 255130), (155, 130034), (158, 127565), (310, 65017), (395, 51026), (790, 25513), (823, 24490), (1646, 12245), (2449, 8230), (4115, 4898)]