8123480

素因数分解:

$2^3\times 5^1\times {\mathrm{29}}^1\times {\mathrm{47}}^1\times {\mathrm{149}}^1$

素因数の和:236

約数の個数: 64

約数和(自身を含む): 19440000

約数和(自身を除く): 11316520

約数列:

[1, 2, 4, 5, 8, 10, 20, 29, 40, 47, 58, 94, 116, 145, 149, 188, 232, 235, 290, 298, 376, 470, 580, 596, 745, 940, 1160, 1192, 1363, 1490, 1880, 2726, 2980, 4321, 5452, 5960, 6815, 7003, 8642, 10904, 13630, 14006, 17284, 21605, 27260, 28012, 34568, 35015, 43210, 54520, 56024, 70030, 86420, 140060, 172840, 203087, 280120, 406174, 812348, 1015435, 1624696, 2030870, 4061740, 8123480]

約数ペア:

[(1, 8123480), (2, 4061740), (4, 2030870), (5, 1624696), (8, 1015435), (10, 812348), (20, 406174), (29, 280120), (40, 203087), (47, 172840), (58, 140060), (94, 86420), (116, 70030), (145, 56024), (149, 54520), (188, 43210), (232, 35015), (235, 34568), (290, 28012), (298, 27260), (376, 21605), (470, 17284), (580, 14006), (596, 13630), (745, 10904), (940, 8642), (1160, 7003), (1192, 6815), (1363, 5960), (1490, 5452), (1880, 4321), (2726, 2980)]