18487620

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{271}}^1\times {\mathrm{379}}^1$

素因数の和:665

約数の個数: 72

約数和(自身を含む): 56434560

約数和(自身を除く): 37946940

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 271, 379, 542, 758, 813, 1084, 1137, 1355, 1516, 1626, 1895, 2274, 2439, 2710, 3252, 3411, 3790, 4065, 4548, 4878, 5420, 5685, 6822, 7580, 8130, 9756, 11370, 12195, 13644, 16260, 17055, 22740, 24390, 34110, 48780, 68220, 102709, 205418, 308127, 410836, 513545, 616254, 924381, 1027090, 1232508, 1540635, 1848762, 2054180, 3081270, 3697524, 4621905, 6162540, 9243810, 18487620]

約数ペア:

[(1, 18487620), (2, 9243810), (3, 6162540), (4, 4621905), (5, 3697524), (6, 3081270), (9, 2054180), (10, 1848762), (12, 1540635), (15, 1232508), (18, 1027090), (20, 924381), (30, 616254), (36, 513545), (45, 410836), (60, 308127), (90, 205418), (180, 102709), (271, 68220), (379, 48780), (542, 34110), (758, 24390), (813, 22740), (1084, 17055), (1137, 16260), (1355, 13644), (1516, 12195), (1626, 11370), (1895, 9756), (2274, 8130), (2439, 7580), (2710, 6822), (3252, 5685), (3411, 5420), (3790, 4878), (4065, 4548)]