80721746

素因数分解:

$2^1\times 7^1\times {\mathrm{17}}^2\times {\mathrm{71}}^1\times {\mathrm{281}}^1$

素因数の和:395

約数の個数: 48

約数和(自身を含む): 149599872

約数和(自身を除く): 68878126

約数列:

[1, 2, 7, 14, 17, 34, 71, 119, 142, 238, 281, 289, 497, 562, 578, 994, 1207, 1967, 2023, 2414, 3934, 4046, 4777, 8449, 9554, 16898, 19951, 20519, 33439, 39902, 41038, 66878, 81209, 139657, 143633, 162418, 279314, 287266, 339167, 568463, 678334, 1136926, 2374169, 4748338, 5765839, 11531678, 40360873, 80721746]

約数ペア:

[(1, 80721746), (2, 40360873), (7, 11531678), (14, 5765839), (17, 4748338), (34, 2374169), (71, 1136926), (119, 678334), (142, 568463), (238, 339167), (281, 287266), (289, 279314), (497, 162418), (562, 143633), (578, 139657), (994, 81209), (1207, 66878), (1967, 41038), (2023, 39902), (2414, 33439), (3934, 20519), (4046, 19951), (4777, 16898), (8449, 9554)]