200820465

素因数分解:

$3^4\times 5^1\times {\mathrm{397}}^1\times {\mathrm{1249}}^1$

素因数の和:1663

約数の個数: 40

約数和(自身を含む): 361185000

約数和(自身を除く): 160364535

約数列:

[1, 3, 5, 9, 15, 27, 45, 81, 135, 397, 405, 1191, 1249, 1985, 3573, 3747, 5955, 6245, 10719, 11241, 17865, 18735, 32157, 33723, 53595, 56205, 101169, 160785, 168615, 495853, 505845, 1487559, 2479265, 4462677, 7437795, 13388031, 22313385, 40164093, 66940155, 200820465]

約数ペア:

[(1, 200820465), (3, 66940155), (5, 40164093), (9, 22313385), (15, 13388031), (27, 7437795), (45, 4462677), (81, 2479265), (135, 1487559), (397, 505845), (405, 495853), (1191, 168615), (1249, 160785), (1985, 101169), (3573, 56205), (3747, 53595), (5955, 33723), (6245, 32157), (10719, 18735), (11241, 17865)]