81114040

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{79}}^1\times {\mathrm{193}}^1$

素因数の和:309

約数の個数: 128

約数和(自身を含む): 223488000

約数和(自身を除く): 142373960

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 19, 20, 28, 35, 38, 40, 56, 70, 76, 79, 95, 133, 140, 152, 158, 190, 193, 266, 280, 316, 380, 386, 395, 532, 553, 632, 665, 760, 772, 790, 965, 1064, 1106, 1330, 1351, 1501, 1544, 1580, 1930, 2212, 2660, 2702, 2765, 3002, 3160, 3667, 3860, 4424, 5320, 5404, 5530, 6004, 6755, 7334, 7505, 7720, 10507, 10808, 11060, 12008, 13510, 14668, 15010, 15247, 18335, 21014, 22120, 25669, 27020, 29336, 30020, 30494, 36670, 42028, 51338, 52535, 54040, 60040, 60988, 73340, 76235, 84056, 102676, 105070, 106729, 121976, 128345, 146680, 152470, 205352, 210140, 213458, 256690, 289693, 304940, 420280, 426916, 513380, 533645, 579386, 609880, 853832, 1026760, 1067290, 1158772, 1448465, 2027851, 2134580, 2317544, 2896930, 4055702, 4269160, 5793860, 8111404, 10139255, 11587720, 16222808, 20278510, 40557020, 81114040]

約数ペア:

[(1, 81114040), (2, 40557020), (4, 20278510), (5, 16222808), (7, 11587720), (8, 10139255), (10, 8111404), (14, 5793860), (19, 4269160), (20, 4055702), (28, 2896930), (35, 2317544), (38, 2134580), (40, 2027851), (56, 1448465), (70, 1158772), (76, 1067290), (79, 1026760), (95, 853832), (133, 609880), (140, 579386), (152, 533645), (158, 513380), (190, 426916), (193, 420280), (266, 304940), (280, 289693), (316, 256690), (380, 213458), (386, 210140), (395, 205352), (532, 152470), (553, 146680), (632, 128345), (665, 121976), (760, 106729), (772, 105070), (790, 102676), (965, 84056), (1064, 76235), (1106, 73340), (1330, 60988), (1351, 60040), (1501, 54040), (1544, 52535), (1580, 51338), (1930, 42028), (2212, 36670), (2660, 30494), (2702, 30020), (2765, 29336), (3002, 27020), (3160, 25669), (3667, 22120), (3860, 21014), (4424, 18335), (5320, 15247), (5404, 15010), (5530, 14668), (6004, 13510), (6755, 12008), (7334, 11060), (7505, 10808), (7720, 10507)]