2178090

素因数分解:

$2^1\times 3^4\times 5^1\times {\mathrm{2689}}^1$

素因数の和:2708

約数の個数: 40

約数和(自身を含む): 5858820

約数和(自身を除く): 3680730

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 27, 30, 45, 54, 81, 90, 135, 162, 270, 405, 810, 2689, 5378, 8067, 13445, 16134, 24201, 26890, 40335, 48402, 72603, 80670, 121005, 145206, 217809, 242010, 363015, 435618, 726030, 1089045, 2178090]

約数ペア:

[(1, 2178090), (2, 1089045), (3, 726030), (5, 435618), (6, 363015), (9, 242010), (10, 217809), (15, 145206), (18, 121005), (27, 80670), (30, 72603), (45, 48402), (54, 40335), (81, 26890), (90, 24201), (135, 16134), (162, 13445), (270, 8067), (405, 5378), (810, 2689)]