19929787450

素因数分解:

$2^1\times 5^2\times {\mathrm{29}}^1\times {\mathrm{691}}^1\times {\mathrm{19891}}^1$

素因数の和:20623

約数の個数: 48

約数和(自身を含む): 38405086560

約数和(自身を除く): 18475299110

約数列:

[1, 2, 5, 10, 25, 29, 50, 58, 145, 290, 691, 725, 1382, 1450, 3455, 6910, 17275, 19891, 20039, 34550, 39782, 40078, 99455, 100195, 198910, 200390, 497275, 500975, 576839, 994550, 1001950, 1153678, 2884195, 5768390, 13744681, 14420975, 27489362, 28841950, 68723405, 137446810, 343617025, 398595749, 687234050, 797191498, 1992978745, 3985957490, 9964893725, 19929787450]

約数ペア:

[(1, 19929787450), (2, 9964893725), (5, 3985957490), (10, 1992978745), (25, 797191498), (29, 687234050), (50, 398595749), (58, 343617025), (145, 137446810), (290, 68723405), (691, 28841950), (725, 27489362), (1382, 14420975), (1450, 13744681), (3455, 5768390), (6910, 2884195), (17275, 1153678), (19891, 1001950), (20039, 994550), (34550, 576839), (39782, 500975), (40078, 497275), (99455, 200390), (100195, 198910)]