20469848

素因数分解:

$2^3\times 7^2\times {\mathrm{79}}^1\times {\mathrm{661}}^1$

素因数の和:760

約数の個数: 48

約数和(自身を含む): 45280800

約数和(自身を除く): 24810952

約数列:

[1, 2, 4, 7, 8, 14, 28, 49, 56, 79, 98, 158, 196, 316, 392, 553, 632, 661, 1106, 1322, 2212, 2644, 3871, 4424, 4627, 5288, 7742, 9254, 15484, 18508, 30968, 32389, 37016, 52219, 64778, 104438, 129556, 208876, 259112, 365533, 417752, 731066, 1462132, 2558731, 2924264, 5117462, 10234924, 20469848]

約数ペア:

[(1, 20469848), (2, 10234924), (4, 5117462), (7, 2924264), (8, 2558731), (14, 1462132), (28, 731066), (49, 417752), (56, 365533), (79, 259112), (98, 208876), (158, 129556), (196, 104438), (316, 64778), (392, 52219), (553, 37016), (632, 32389), (661, 30968), (1106, 18508), (1322, 15484), (2212, 9254), (2644, 7742), (3871, 5288), (4424, 4627)]