20501912

素因数分解:

$2^3\times {\mathrm{19}}^2\times {\mathrm{31}}^1\times {\mathrm{229}}^1$

素因数の和:304

約数の個数: 48

約数和(自身を含む): 42062400

約数和(自身を除く): 21560488

約数列:

[1, 2, 4, 8, 19, 31, 38, 62, 76, 124, 152, 229, 248, 361, 458, 589, 722, 916, 1178, 1444, 1832, 2356, 2888, 4351, 4712, 7099, 8702, 11191, 14198, 17404, 22382, 28396, 34808, 44764, 56792, 82669, 89528, 134881, 165338, 269762, 330676, 539524, 661352, 1079048, 2562739, 5125478, 10250956, 20501912]

約数ペア:

[(1, 20501912), (2, 10250956), (4, 5125478), (8, 2562739), (19, 1079048), (31, 661352), (38, 539524), (62, 330676), (76, 269762), (124, 165338), (152, 134881), (229, 89528), (248, 82669), (361, 56792), (458, 44764), (589, 34808), (722, 28396), (916, 22382), (1178, 17404), (1444, 14198), (1832, 11191), (2356, 8702), (2888, 7099), (4351, 4712)]