51186780

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{199}}^1\times {\mathrm{1429}}^1$

素因数の和:1643

約数の個数: 72

約数和(自身を含む): 156156000

約数和(自身を除く): 104969220

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 199, 398, 597, 796, 995, 1194, 1429, 1791, 1990, 2388, 2858, 2985, 3582, 3980, 4287, 5716, 5970, 7145, 7164, 8574, 8955, 11940, 12861, 14290, 17148, 17910, 21435, 25722, 28580, 35820, 42870, 51444, 64305, 85740, 128610, 257220, 284371, 568742, 853113, 1137484, 1421855, 1706226, 2559339, 2843710, 3412452, 4265565, 5118678, 5687420, 8531130, 10237356, 12796695, 17062260, 25593390, 51186780]

約数ペア:

[(1, 51186780), (2, 25593390), (3, 17062260), (4, 12796695), (5, 10237356), (6, 8531130), (9, 5687420), (10, 5118678), (12, 4265565), (15, 3412452), (18, 2843710), (20, 2559339), (30, 1706226), (36, 1421855), (45, 1137484), (60, 853113), (90, 568742), (180, 284371), (199, 257220), (398, 128610), (597, 85740), (796, 64305), (995, 51444), (1194, 42870), (1429, 35820), (1791, 28580), (1990, 25722), (2388, 21435), (2858, 17910), (2985, 17148), (3582, 14290), (3980, 12861), (4287, 11940), (5716, 8955), (5970, 8574), (7145, 7164)]