420565240

素因数分解:

$2^3\times 5^1\times {\mathrm{1223}}^1\times {\mathrm{8597}}^1$

素因数の和:9831

約数の個数: 32

約数和(自身を含む): 947155680

約数和(自身を除く): 526590440

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 1223, 2446, 4892, 6115, 8597, 9784, 12230, 17194, 24460, 34388, 42985, 48920, 68776, 85970, 171940, 343880, 10514131, 21028262, 42056524, 52570655, 84113048, 105141310, 210282620, 420565240]

約数ペア:

[(1, 420565240), (2, 210282620), (4, 105141310), (5, 84113048), (8, 52570655), (10, 42056524), (20, 21028262), (40, 10514131), (1223, 343880), (2446, 171940), (4892, 85970), (6115, 68776), (8597, 48920), (9784, 42985), (12230, 34388), (17194, 24460)]