77551880

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{47}}^1\times {\mathrm{71}}^1\times {\mathrm{83}}^1$

素因数の和:219

約数の個数: 128

約数和(自身を含む): 209018880

約数和(自身を除く): 131467000

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 47, 56, 70, 71, 83, 94, 140, 142, 166, 188, 235, 280, 284, 329, 332, 355, 376, 415, 470, 497, 568, 581, 658, 664, 710, 830, 940, 994, 1162, 1316, 1420, 1645, 1660, 1880, 1988, 2324, 2485, 2632, 2840, 2905, 3290, 3320, 3337, 3901, 3976, 4648, 4970, 5810, 5893, 6580, 6674, 7802, 9940, 11620, 11786, 13160, 13348, 15604, 16685, 19505, 19880, 23240, 23359, 23572, 26696, 27307, 29465, 31208, 33370, 39010, 41251, 46718, 47144, 54614, 58930, 66740, 78020, 82502, 93436, 109228, 116795, 117860, 133480, 136535, 156040, 165004, 186872, 206255, 218456, 233590, 235720, 273070, 276971, 330008, 412510, 467180, 546140, 553942, 825020, 934360, 1092280, 1107884, 1384855, 1650040, 1938797, 2215768, 2769710, 3877594, 5539420, 7755188, 9693985, 11078840, 15510376, 19387970, 38775940, 77551880]

約数ペア:

[(1, 77551880), (2, 38775940), (4, 19387970), (5, 15510376), (7, 11078840), (8, 9693985), (10, 7755188), (14, 5539420), (20, 3877594), (28, 2769710), (35, 2215768), (40, 1938797), (47, 1650040), (56, 1384855), (70, 1107884), (71, 1092280), (83, 934360), (94, 825020), (140, 553942), (142, 546140), (166, 467180), (188, 412510), (235, 330008), (280, 276971), (284, 273070), (329, 235720), (332, 233590), (355, 218456), (376, 206255), (415, 186872), (470, 165004), (497, 156040), (568, 136535), (581, 133480), (658, 117860), (664, 116795), (710, 109228), (830, 93436), (940, 82502), (994, 78020), (1162, 66740), (1316, 58930), (1420, 54614), (1645, 47144), (1660, 46718), (1880, 41251), (1988, 39010), (2324, 33370), (2485, 31208), (2632, 29465), (2840, 27307), (2905, 26696), (3290, 23572), (3320, 23359), (3337, 23240), (3901, 19880), (3976, 19505), (4648, 16685), (4970, 15604), (5810, 13348), (5893, 13160), (6580, 11786), (6674, 11620), (7802, 9940)]