201619761520

素因数分解:

$2^4\times 5^1\times {\mathrm{47}}^1\times {\mathrm{79}}^1\times {\mathrm{678763}}^1$

素因数の和:678902

約数の個数: 80

約数和(自身を含む): 484800399360

約数和(自身を除く): 283180637840

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 47, 79, 80, 94, 158, 188, 235, 316, 376, 395, 470, 632, 752, 790, 940, 1264, 1580, 1880, 3160, 3713, 3760, 6320, 7426, 14852, 18565, 29704, 37130, 59408, 74260, 148520, 297040, 678763, 1357526, 2715052, 3393815, 5430104, 6787630, 10860208, 13575260, 27150520, 31901861, 53622277, 54301040, 63803722, 107244554, 127607444, 159509305, 214489108, 255214888, 268111385, 319018610, 428978216, 510429776, 536222770, 638037220, 857956432, 1072445540, 1276074440, 2144891080, 2520247019, 2552148880, 4289782160, 5040494038, 10080988076, 12601235095, 20161976152, 25202470190, 40323952304, 50404940380, 100809880760, 201619761520]

約数ペア:

[(1, 201619761520), (2, 100809880760), (4, 50404940380), (5, 40323952304), (8, 25202470190), (10, 20161976152), (16, 12601235095), (20, 10080988076), (40, 5040494038), (47, 4289782160), (79, 2552148880), (80, 2520247019), (94, 2144891080), (158, 1276074440), (188, 1072445540), (235, 857956432), (316, 638037220), (376, 536222770), (395, 510429776), (470, 428978216), (632, 319018610), (752, 268111385), (790, 255214888), (940, 214489108), (1264, 159509305), (1580, 127607444), (1880, 107244554), (3160, 63803722), (3713, 54301040), (3760, 53622277), (6320, 31901861), (7426, 27150520), (14852, 13575260), (18565, 10860208), (29704, 6787630), (37130, 5430104), (59408, 3393815), (74260, 2715052), (148520, 1357526), (297040, 678763)]