82171060

素因数分解:

$2^2\times 5^1\times {\mathrm{79}}^1\times {\mathrm{131}}^1\times {\mathrm{397}}^1$

素因数の和:616

約数の個数: 48

約数和(自身を含む): 176520960

約数和(自身を除く): 94349900

約数列:

[1, 2, 4, 5, 10, 20, 79, 131, 158, 262, 316, 395, 397, 524, 655, 790, 794, 1310, 1580, 1588, 1985, 2620, 3970, 7940, 10349, 20698, 31363, 41396, 51745, 52007, 62726, 103490, 104014, 125452, 156815, 206980, 208028, 260035, 313630, 520070, 627260, 1040140, 4108553, 8217106, 16434212, 20542765, 41085530, 82171060]

約数ペア:

[(1, 82171060), (2, 41085530), (4, 20542765), (5, 16434212), (10, 8217106), (20, 4108553), (79, 1040140), (131, 627260), (158, 520070), (262, 313630), (316, 260035), (395, 208028), (397, 206980), (524, 156815), (655, 125452), (790, 104014), (794, 103490), (1310, 62726), (1580, 52007), (1588, 51745), (1985, 41396), (2620, 31363), (3970, 20698), (7940, 10349)]