867220

素因数分解:

$2^2\times 5^1\times {\mathrm{131}}^1\times {\mathrm{331}}^1$

素因数の和:471

約数の個数: 24

約数和(自身を含む): 1840608

約数和(自身を除く): 973388

約数列:

[1, 2, 4, 5, 10, 20, 131, 262, 331, 524, 655, 662, 1310, 1324, 1655, 2620, 3310, 6620, 43361, 86722, 173444, 216805, 433610, 867220]

約数ペア:

[(1, 867220), (2, 433610), (4, 216805), (5, 173444), (10, 86722), (20, 43361), (131, 6620), (262, 3310), (331, 2620), (524, 1655), (655, 1324), (662, 1310)]