21705360

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{90439}}^1$

素因数の和:90455

約数の個数: 40

約数和(自身を含む): 67287360

約数和(自身を除く): 45582000

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 40, 48, 60, 80, 120, 240, 90439, 180878, 271317, 361756, 452195, 542634, 723512, 904390, 1085268, 1356585, 1447024, 1808780, 2170536, 2713170, 3617560, 4341072, 5426340, 7235120, 10852680, 21705360]

約数ペア:

[(1, 21705360), (2, 10852680), (3, 7235120), (4, 5426340), (5, 4341072), (6, 3617560), (8, 2713170), (10, 2170536), (12, 1808780), (15, 1447024), (16, 1356585), (20, 1085268), (24, 904390), (30, 723512), (40, 542634), (48, 452195), (60, 361756), (80, 271317), (120, 180878), (240, 90439)]