489656840

素因数分解:

$2^3\times 5^1\times {\mathrm{83}}^1\times {\mathrm{147487}}^1$

素因数の和:147581

約数の個数: 32

約数和(自身を含む): 1115009280

約数和(自身を除く): 625352440

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 83, 166, 332, 415, 664, 830, 1660, 3320, 147487, 294974, 589948, 737435, 1179896, 1474870, 2949740, 5899480, 12241421, 24482842, 48965684, 61207105, 97931368, 122414210, 244828420, 489656840]

約数ペア:

[(1, 489656840), (2, 244828420), (4, 122414210), (5, 97931368), (8, 61207105), (10, 48965684), (20, 24482842), (40, 12241421), (83, 5899480), (166, 2949740), (332, 1474870), (415, 1179896), (664, 737435), (830, 589948), (1660, 294974), (3320, 147487)]