20175668

素因数分解:

$2^2\times {\mathrm{17}}^2\times {\mathrm{31}}^1\times {\mathrm{563}}^1$

素因数の和:632

約数の個数: 36

約数和(自身を含む): 38785152

約数和(自身を除く): 18609484

約数列:

[1, 2, 4, 17, 31, 34, 62, 68, 124, 289, 527, 563, 578, 1054, 1126, 1156, 2108, 2252, 8959, 9571, 17453, 17918, 19142, 34906, 35836, 38284, 69812, 162707, 296701, 325414, 593402, 650828, 1186804, 5043917, 10087834, 20175668]

約数ペア:

[(1, 20175668), (2, 10087834), (4, 5043917), (17, 1186804), (31, 650828), (34, 593402), (62, 325414), (68, 296701), (124, 162707), (289, 69812), (527, 38284), (563, 35836), (578, 34906), (1054, 19142), (1126, 17918), (1156, 17453), (2108, 9571), (2252, 8959)]