51881680

素因数分解:

$2^4\times 5^1\times {\mathrm{101}}^1\times {\mathrm{6421}}^1$

素因数の和:6535

約数の個数: 40

約数和(自身を含む): 121838184

約数和(自身を除く): 69956504

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 101, 202, 404, 505, 808, 1010, 1616, 2020, 4040, 6421, 8080, 12842, 25684, 32105, 51368, 64210, 102736, 128420, 256840, 513680, 648521, 1297042, 2594084, 3242605, 5188168, 6485210, 10376336, 12970420, 25940840, 51881680]

約数ペア:

[(1, 51881680), (2, 25940840), (4, 12970420), (5, 10376336), (8, 6485210), (10, 5188168), (16, 3242605), (20, 2594084), (40, 1297042), (80, 648521), (101, 513680), (202, 256840), (404, 128420), (505, 102736), (808, 64210), (1010, 51368), (1616, 32105), (2020, 25684), (4040, 12842), (6421, 8080)]