19549880

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{69821}}^1$

素因数の和:69839

約数の個数: 32

約数和(自身を含む): 50271840

約数和(自身を除く): 30721960

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 69821, 139642, 279284, 349105, 488747, 558568, 698210, 977494, 1396420, 1954988, 2443735, 2792840, 3909976, 4887470, 9774940, 19549880]

約数ペア:

[(1, 19549880), (2, 9774940), (4, 4887470), (5, 3909976), (7, 2792840), (8, 2443735), (10, 1954988), (14, 1396420), (20, 977494), (28, 698210), (35, 558568), (40, 488747), (56, 349105), (70, 279284), (140, 139642), (280, 69821)]