68820660

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{20123}}^1$

素因数の和:20157

約数の個数: 72

約数和(自身を含む): 219754080

約数和(自身を除く): 150933420

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 19, 20, 30, 36, 38, 45, 57, 60, 76, 90, 95, 114, 171, 180, 190, 228, 285, 342, 380, 570, 684, 855, 1140, 1710, 3420, 20123, 40246, 60369, 80492, 100615, 120738, 181107, 201230, 241476, 301845, 362214, 382337, 402460, 603690, 724428, 764674, 905535, 1147011, 1207380, 1529348, 1811070, 1911685, 2294022, 3441033, 3622140, 3823370, 4588044, 5735055, 6882066, 7646740, 11470110, 13764132, 17205165, 22940220, 34410330, 68820660]

約数ペア:

[(1, 68820660), (2, 34410330), (3, 22940220), (4, 17205165), (5, 13764132), (6, 11470110), (9, 7646740), (10, 6882066), (12, 5735055), (15, 4588044), (18, 3823370), (19, 3622140), (20, 3441033), (30, 2294022), (36, 1911685), (38, 1811070), (45, 1529348), (57, 1207380), (60, 1147011), (76, 905535), (90, 764674), (95, 724428), (114, 603690), (171, 402460), (180, 382337), (190, 362214), (228, 301845), (285, 241476), (342, 201230), (380, 181107), (570, 120738), (684, 100615), (855, 80492), (1140, 60369), (1710, 40246), (3420, 20123)]