72405540

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{402253}}^1$

素因数の和:402268

約数の個数: 36

約数和(自身を含む): 219630684

約数和(自身を除く): 147225144

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 402253, 804506, 1206759, 1609012, 2011265, 2413518, 3620277, 4022530, 4827036, 6033795, 7240554, 8045060, 12067590, 14481108, 18101385, 24135180, 36202770, 72405540]

約数ペア:

[(1, 72405540), (2, 36202770), (3, 24135180), (4, 18101385), (5, 14481108), (6, 12067590), (9, 8045060), (10, 7240554), (12, 6033795), (15, 4827036), (18, 4022530), (20, 3620277), (30, 2413518), (36, 2011265), (45, 1609012), (60, 1206759), (90, 804506), (180, 402253)]