13398680

素因数分解:

$2^3\times 5^1\times {\mathrm{131}}^1\times {\mathrm{2557}}^1$

素因数の和:2699

約数の個数: 32

約数和(自身を含む): 30389040

約数和(自身を除く): 16990360

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 131, 262, 524, 655, 1048, 1310, 2557, 2620, 5114, 5240, 10228, 12785, 20456, 25570, 51140, 102280, 334967, 669934, 1339868, 1674835, 2679736, 3349670, 6699340, 13398680]

約数ペア:

[(1, 13398680), (2, 6699340), (4, 3349670), (5, 2679736), (8, 1674835), (10, 1339868), (20, 669934), (40, 334967), (131, 102280), (262, 51140), (524, 25570), (655, 20456), (1048, 12785), (1310, 10228), (2557, 5240), (2620, 5114)]