20021288

素因数分解:

$2^3\times 7^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{607}}^1$

素因数の和:670

約数の個数: 64

約数和(自身を含む): 46694400

約数和(自身を除く): 26673112

約数列:

[1, 2, 4, 7, 8, 14, 19, 28, 31, 38, 56, 62, 76, 124, 133, 152, 217, 248, 266, 434, 532, 589, 607, 868, 1064, 1178, 1214, 1736, 2356, 2428, 4123, 4249, 4712, 4856, 8246, 8498, 11533, 16492, 16996, 18817, 23066, 32984, 33992, 37634, 46132, 75268, 80731, 92264, 131719, 150536, 161462, 263438, 322924, 357523, 526876, 645848, 715046, 1053752, 1430092, 2502661, 2860184, 5005322, 10010644, 20021288]

約数ペア:

[(1, 20021288), (2, 10010644), (4, 5005322), (7, 2860184), (8, 2502661), (14, 1430092), (19, 1053752), (28, 715046), (31, 645848), (38, 526876), (56, 357523), (62, 322924), (76, 263438), (124, 161462), (133, 150536), (152, 131719), (217, 92264), (248, 80731), (266, 75268), (434, 46132), (532, 37634), (589, 33992), (607, 32984), (868, 23066), (1064, 18817), (1178, 16996), (1214, 16492), (1736, 11533), (2356, 8498), (2428, 8246), (4123, 4856), (4249, 4712)]