28997080

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{103561}}^1$

素因数の和:103579

約数の個数: 32

約数和(自身を含む): 74564640

約数和(自身を除く): 45567560

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 103561, 207122, 414244, 517805, 724927, 828488, 1035610, 1449854, 2071220, 2899708, 3624635, 4142440, 5799416, 7249270, 14498540, 28997080]

約数ペア:

[(1, 28997080), (2, 14498540), (4, 7249270), (5, 5799416), (7, 4142440), (8, 3624635), (10, 2899708), (14, 2071220), (20, 1449854), (28, 1035610), (35, 828488), (40, 724927), (56, 517805), (70, 414244), (140, 207122), (280, 103561)]