19887984

素因数分解:

$2^4\times 3^3\times {\mathrm{19}}^1\times {\mathrm{2423}}^1$

素因数の和:2459

約数の個数: 80

約数和(自身を含む): 60115200

約数和(自身を除く): 40227216

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 19, 24, 27, 36, 38, 48, 54, 57, 72, 76, 108, 114, 144, 152, 171, 216, 228, 304, 342, 432, 456, 513, 684, 912, 1026, 1368, 2052, 2423, 2736, 4104, 4846, 7269, 8208, 9692, 14538, 19384, 21807, 29076, 38768, 43614, 46037, 58152, 65421, 87228, 92074, 116304, 130842, 138111, 174456, 184148, 261684, 276222, 348912, 368296, 414333, 523368, 552444, 736592, 828666, 1046736, 1104888, 1242999, 1657332, 2209776, 2485998, 3314664, 4971996, 6629328, 9943992, 19887984]

約数ペア:

[(1, 19887984), (2, 9943992), (3, 6629328), (4, 4971996), (6, 3314664), (8, 2485998), (9, 2209776), (12, 1657332), (16, 1242999), (18, 1104888), (19, 1046736), (24, 828666), (27, 736592), (36, 552444), (38, 523368), (48, 414333), (54, 368296), (57, 348912), (72, 276222), (76, 261684), (108, 184148), (114, 174456), (144, 138111), (152, 130842), (171, 116304), (216, 92074), (228, 87228), (304, 65421), (342, 58152), (432, 46037), (456, 43614), (513, 38768), (684, 29076), (912, 21807), (1026, 19384), (1368, 14538), (2052, 9692), (2423, 8208), (2736, 7269), (4104, 4846)]