291216910

素因数分解:

$2^1\times 5^1\times {\mathrm{79}}^1\times {\mathrm{449}}^1\times {\mathrm{821}}^1$

素因数の和:1356

約数の個数: 32

約数和(自身を含む): 532656000

約数和(自身を除く): 241439090

約数列:

[1, 2, 5, 10, 79, 158, 395, 449, 790, 821, 898, 1642, 2245, 4105, 4490, 8210, 35471, 64859, 70942, 129718, 177355, 324295, 354710, 368629, 648590, 737258, 1843145, 3686290, 29121691, 58243382, 145608455, 291216910]

約数ペア:

[(1, 291216910), (2, 145608455), (5, 58243382), (10, 29121691), (79, 3686290), (158, 1843145), (395, 737258), (449, 648590), (790, 368629), (821, 354710), (898, 324295), (1642, 177355), (2245, 129718), (4105, 70942), (4490, 64859), (8210, 35471)]