20187215864

素因数分解:

$2^3\times {\mathrm{71}}^1\times {\mathrm{113}}^1\times {\mathrm{409}}^1\times {\mathrm{769}}^1$

素因数の和:1368

約数の個数: 64

約数和(自身を含む): 38868984000

約数和(自身を除く): 18681768136

約数列:

[1, 2, 4, 8, 71, 113, 142, 226, 284, 409, 452, 568, 769, 818, 904, 1538, 1636, 3076, 3272, 6152, 8023, 16046, 29039, 32092, 46217, 54599, 58078, 64184, 86897, 92434, 109198, 116156, 173794, 184868, 218396, 232312, 314521, 347588, 369736, 436792, 629042, 695176, 1258084, 2516168, 3281407, 6169687, 6562814, 12339374, 13125628, 22330991, 24678748, 26251256, 35540873, 44661982, 49357496, 71081746, 89323964, 142163492, 178647928, 284326984, 2523401983, 5046803966, 10093607932, 20187215864]

約数ペア:

[(1, 20187215864), (2, 10093607932), (4, 5046803966), (8, 2523401983), (71, 284326984), (113, 178647928), (142, 142163492), (226, 89323964), (284, 71081746), (409, 49357496), (452, 44661982), (568, 35540873), (769, 26251256), (818, 24678748), (904, 22330991), (1538, 13125628), (1636, 12339374), (3076, 6562814), (3272, 6169687), (6152, 3281407), (8023, 2516168), (16046, 1258084), (29039, 695176), (32092, 629042), (46217, 436792), (54599, 369736), (58078, 347588), (64184, 314521), (86897, 232312), (92434, 218396), (109198, 184868), (116156, 173794)]