248831440

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{21751}}^1$

素因数の和:21788

約数の個数: 80

約数和(自身を含む): 679706496

約数和(自身を除く): 430875056

約数列:

[1, 2, 4, 5, 8, 10, 11, 13, 16, 20, 22, 26, 40, 44, 52, 55, 65, 80, 88, 104, 110, 130, 143, 176, 208, 220, 260, 286, 440, 520, 572, 715, 880, 1040, 1144, 1430, 2288, 2860, 5720, 11440, 21751, 43502, 87004, 108755, 174008, 217510, 239261, 282763, 348016, 435020, 478522, 565526, 870040, 957044, 1131052, 1196305, 1413815, 1740080, 1914088, 2262104, 2392610, 2827630, 3110393, 3828176, 4524208, 4785220, 5655260, 6220786, 9570440, 11310520, 12441572, 15551965, 19140880, 22621040, 24883144, 31103930, 49766288, 62207860, 124415720, 248831440]

約数ペア:

[(1, 248831440), (2, 124415720), (4, 62207860), (5, 49766288), (8, 31103930), (10, 24883144), (11, 22621040), (13, 19140880), (16, 15551965), (20, 12441572), (22, 11310520), (26, 9570440), (40, 6220786), (44, 5655260), (52, 4785220), (55, 4524208), (65, 3828176), (80, 3110393), (88, 2827630), (104, 2392610), (110, 2262104), (130, 1914088), (143, 1740080), (176, 1413815), (208, 1196305), (220, 1131052), (260, 957044), (286, 870040), (440, 565526), (520, 478522), (572, 435020), (715, 348016), (880, 282763), (1040, 239261), (1144, 217510), (1430, 174008), (2288, 108755), (2860, 87004), (5720, 43502), (11440, 21751)]