20229980

素因数分解:

$2^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{67}}^1\times {\mathrm{487}}^1$

素因数の和:594

約数の個数: 48

約数和(自身を含む): 44599296

約数和(自身を除く): 24369316

約数列:

[1, 2, 4, 5, 10, 20, 31, 62, 67, 124, 134, 155, 268, 310, 335, 487, 620, 670, 974, 1340, 1948, 2077, 2435, 4154, 4870, 8308, 9740, 10385, 15097, 20770, 30194, 32629, 41540, 60388, 65258, 75485, 130516, 150970, 163145, 301940, 326290, 652580, 1011499, 2022998, 4045996, 5057495, 10114990, 20229980]

約数ペア:

[(1, 20229980), (2, 10114990), (4, 5057495), (5, 4045996), (10, 2022998), (20, 1011499), (31, 652580), (62, 326290), (67, 301940), (124, 163145), (134, 150970), (155, 130516), (268, 75485), (310, 65258), (335, 60388), (487, 41540), (620, 32629), (670, 30194), (974, 20770), (1340, 15097), (1948, 10385), (2077, 9740), (2435, 8308), (4154, 4870)]