81060560

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{144751}}^1$

素因数の和:144771

約数の個数: 40

約数和(自身を含む): 215390976

約数和(自身を除く): 134330416

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 80, 112, 140, 280, 560, 144751, 289502, 579004, 723755, 1013257, 1158008, 1447510, 2026514, 2316016, 2895020, 4053028, 5066285, 5790040, 8106056, 10132570, 11580080, 16212112, 20265140, 40530280, 81060560]

約数ペア:

[(1, 81060560), (2, 40530280), (4, 20265140), (5, 16212112), (7, 11580080), (8, 10132570), (10, 8106056), (14, 5790040), (16, 5066285), (20, 4053028), (28, 2895020), (35, 2316016), (40, 2026514), (56, 1447510), (70, 1158008), (80, 1013257), (112, 723755), (140, 579004), (280, 289502), (560, 144751)]