647811480

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{41}}^1\times {\mathrm{353}}^1\times {\mathrm{373}}^1$

素因数の和:781

約数の個数: 128

約数和(自身を含む): 2001827520

約数和(自身を除く): 1354016040

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 41, 60, 82, 120, 123, 164, 205, 246, 328, 353, 373, 410, 492, 615, 706, 746, 820, 984, 1059, 1119, 1230, 1412, 1492, 1640, 1765, 1865, 2118, 2238, 2460, 2824, 2984, 3530, 3730, 4236, 4476, 4920, 5295, 5595, 7060, 7460, 8472, 8952, 10590, 11190, 14120, 14473, 14920, 15293, 21180, 22380, 28946, 30586, 42360, 43419, 44760, 45879, 57892, 61172, 72365, 76465, 86838, 91758, 115784, 122344, 131669, 144730, 152930, 173676, 183516, 217095, 229395, 263338, 289460, 305860, 347352, 367032, 395007, 434190, 458790, 526676, 578920, 611720, 658345, 790014, 868380, 917580, 1053352, 1316690, 1580028, 1736760, 1835160, 1975035, 2633380, 3160056, 3950070, 5266760, 5398429, 7900140, 10796858, 15800280, 16195287, 21593716, 26992145, 32390574, 43187432, 53984290, 64781148, 80976435, 107968580, 129562296, 161952870, 215937160, 323905740, 647811480]

約数ペア:

[(1, 647811480), (2, 323905740), (3, 215937160), (4, 161952870), (5, 129562296), (6, 107968580), (8, 80976435), (10, 64781148), (12, 53984290), (15, 43187432), (20, 32390574), (24, 26992145), (30, 21593716), (40, 16195287), (41, 15800280), (60, 10796858), (82, 7900140), (120, 5398429), (123, 5266760), (164, 3950070), (205, 3160056), (246, 2633380), (328, 1975035), (353, 1835160), (373, 1736760), (410, 1580028), (492, 1316690), (615, 1053352), (706, 917580), (746, 868380), (820, 790014), (984, 658345), (1059, 611720), (1119, 578920), (1230, 526676), (1412, 458790), (1492, 434190), (1640, 395007), (1765, 367032), (1865, 347352), (2118, 305860), (2238, 289460), (2460, 263338), (2824, 229395), (2984, 217095), (3530, 183516), (3730, 173676), (4236, 152930), (4476, 144730), (4920, 131669), (5295, 122344), (5595, 115784), (7060, 91758), (7460, 86838), (8472, 76465), (8952, 72365), (10590, 61172), (11190, 57892), (14120, 45879), (14473, 44760), (14920, 43419), (15293, 42360), (21180, 30586), (22380, 28946)]