21690120

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{180751}}^1$

素因数の和:180765

約数の個数: 32

約数和(自身を含む): 65070720

約数和(自身を除く): 43380600

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 60, 120, 180751, 361502, 542253, 723004, 903755, 1084506, 1446008, 1807510, 2169012, 2711265, 3615020, 4338024, 5422530, 7230040, 10845060, 21690120]

約数ペア:

[(1, 21690120), (2, 10845060), (3, 7230040), (4, 5422530), (5, 4338024), (6, 3615020), (8, 2711265), (10, 2169012), (12, 1807510), (15, 1446008), (20, 1084506), (24, 903755), (30, 723004), (40, 542253), (60, 361502), (120, 180751)]