131981108

素因数分解:

$2^2\times 7^2\times {\mathrm{157}}^1\times {\mathrm{4289}}^1$

素因数の和:4464

約数の個数: 36

約数和(自身を含む): 270450180

約数和(自身を除く): 138469072

約数列:

[1, 2, 4, 7, 14, 28, 49, 98, 157, 196, 314, 628, 1099, 2198, 4289, 4396, 7693, 8578, 15386, 17156, 30023, 30772, 60046, 120092, 210161, 420322, 673373, 840644, 1346746, 2693492, 4713611, 9427222, 18854444, 32995277, 65990554, 131981108]

約数ペア:

[(1, 131981108), (2, 65990554), (4, 32995277), (7, 18854444), (14, 9427222), (28, 4713611), (49, 2693492), (98, 1346746), (157, 840644), (196, 673373), (314, 420322), (628, 210161), (1099, 120092), (2198, 60046), (4289, 30772), (4396, 30023), (7693, 17156), (8578, 15386)]