20259928

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{10253}}^1$

素因数の和:10291

約数の個数: 32

約数和(自身を含む): 43066800

約数和(自身を除く): 22806872

約数列:

[1, 2, 4, 8, 13, 19, 26, 38, 52, 76, 104, 152, 247, 494, 988, 1976, 10253, 20506, 41012, 82024, 133289, 194807, 266578, 389614, 533156, 779228, 1066312, 1558456, 2532491, 5064982, 10129964, 20259928]

約数ペア:

[(1, 20259928), (2, 10129964), (4, 5064982), (8, 2532491), (13, 1558456), (19, 1066312), (26, 779228), (38, 533156), (52, 389614), (76, 266578), (104, 194807), (152, 133289), (247, 82024), (494, 41012), (988, 20506), (1976, 10253)]