72180

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{401}}^1$

素因数の和:416

約数の個数: 36

約数和(自身を含む): 219492

約数和(自身を除く): 147312

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 401, 802, 1203, 1604, 2005, 2406, 3609, 4010, 4812, 6015, 7218, 8020, 12030, 14436, 18045, 24060, 36090, 72180]

約数ペア:

[(1, 72180), (2, 36090), (3, 24060), (4, 18045), (5, 14436), (6, 12030), (9, 8020), (10, 7218), (12, 6015), (15, 4812), (18, 4010), (20, 3609), (30, 2406), (36, 2005), (45, 1604), (60, 1203), (90, 802), (180, 401)]