78492040

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{41}}^1\times {\mathrm{229}}^1$

素因数の和:311

約数の個数: 128

約数和(自身を含む): 208656000

約数和(自身を除く): 130163960

約数列:

[1, 2, 4, 5, 8, 10, 11, 19, 20, 22, 38, 40, 41, 44, 55, 76, 82, 88, 95, 110, 152, 164, 190, 205, 209, 220, 229, 328, 380, 410, 418, 440, 451, 458, 760, 779, 820, 836, 902, 916, 1045, 1145, 1558, 1640, 1672, 1804, 1832, 2090, 2255, 2290, 2519, 3116, 3608, 3895, 4180, 4351, 4510, 4580, 5038, 6232, 7790, 8360, 8569, 8702, 9020, 9160, 9389, 10076, 12595, 15580, 17138, 17404, 18040, 18778, 20152, 21755, 25190, 31160, 34276, 34808, 37556, 42845, 43510, 46945, 47861, 50380, 68552, 75112, 85690, 87020, 93890, 95722, 100760, 103279, 171380, 174040, 178391, 187780, 191444, 206558, 239305, 342760, 356782, 375560, 382888, 413116, 478610, 516395, 713564, 826232, 891955, 957220, 1032790, 1427128, 1783910, 1914440, 1962301, 2065580, 3567820, 3924602, 4131160, 7135640, 7849204, 9811505, 15698408, 19623010, 39246020, 78492040]

約数ペア:

[(1, 78492040), (2, 39246020), (4, 19623010), (5, 15698408), (8, 9811505), (10, 7849204), (11, 7135640), (19, 4131160), (20, 3924602), (22, 3567820), (38, 2065580), (40, 1962301), (41, 1914440), (44, 1783910), (55, 1427128), (76, 1032790), (82, 957220), (88, 891955), (95, 826232), (110, 713564), (152, 516395), (164, 478610), (190, 413116), (205, 382888), (209, 375560), (220, 356782), (229, 342760), (328, 239305), (380, 206558), (410, 191444), (418, 187780), (440, 178391), (451, 174040), (458, 171380), (760, 103279), (779, 100760), (820, 95722), (836, 93890), (902, 87020), (916, 85690), (1045, 75112), (1145, 68552), (1558, 50380), (1640, 47861), (1672, 46945), (1804, 43510), (1832, 42845), (2090, 37556), (2255, 34808), (2290, 34276), (2519, 31160), (3116, 25190), (3608, 21755), (3895, 20152), (4180, 18778), (4351, 18040), (4510, 17404), (4580, 17138), (5038, 15580), (6232, 12595), (7790, 10076), (8360, 9389), (8569, 9160), (8702, 9020)]