20121304725

素因数分解:

$3^2\times 5^2\times {\mathrm{557}}^1\times {\mathrm{160553}}^1$

素因数の和:161126

約数の個数: 36

約数和(自身を含む): 36104420196

約数和(自身を除く): 15983115471

約数列:

[1, 3, 5, 9, 15, 25, 45, 75, 225, 557, 1671, 2785, 5013, 8355, 13925, 25065, 41775, 125325, 160553, 481659, 802765, 1444977, 2408295, 4013825, 7224885, 12041475, 36124425, 89428021, 268284063, 447140105, 804852189, 1341420315, 2235700525, 4024260945, 6707101575, 20121304725]

約数ペア:

[(1, 20121304725), (3, 6707101575), (5, 4024260945), (9, 2235700525), (15, 1341420315), (25, 804852189), (45, 447140105), (75, 268284063), (225, 89428021), (557, 36124425), (1671, 12041475), (2785, 7224885), (5013, 4013825), (8355, 2408295), (13925, 1444977), (25065, 802765), (41775, 481659), (125325, 160553)]