71881320

素因数分解:

$2^3\times 3^1\times 5^1\times 7^1\times {\mathrm{83}}^1\times {\mathrm{1031}}^1$

素因数の和:1135

約数の個数: 128

約数和(自身を含む): 249661440

約数和(自身を除く): 177780120

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 20, 21, 24, 28, 30, 35, 40, 42, 56, 60, 70, 83, 84, 105, 120, 140, 166, 168, 210, 249, 280, 332, 415, 420, 498, 581, 664, 830, 840, 996, 1031, 1162, 1245, 1660, 1743, 1992, 2062, 2324, 2490, 2905, 3093, 3320, 3486, 4124, 4648, 4980, 5155, 5810, 6186, 6972, 7217, 8248, 8715, 9960, 10310, 11620, 12372, 13944, 14434, 15465, 17430, 20620, 21651, 23240, 24744, 28868, 30930, 34860, 36085, 41240, 43302, 57736, 61860, 69720, 72170, 85573, 86604, 108255, 123720, 144340, 171146, 173208, 216510, 256719, 288680, 342292, 427865, 433020, 513438, 599011, 684584, 855730, 866040, 1026876, 1198022, 1283595, 1711460, 1797033, 2053752, 2396044, 2567190, 2995055, 3422920, 3594066, 4792088, 5134380, 5990110, 7188132, 8985165, 10268760, 11980220, 14376264, 17970330, 23960440, 35940660, 71881320]

約数ペア:

[(1, 71881320), (2, 35940660), (3, 23960440), (4, 17970330), (5, 14376264), (6, 11980220), (7, 10268760), (8, 8985165), (10, 7188132), (12, 5990110), (14, 5134380), (15, 4792088), (20, 3594066), (21, 3422920), (24, 2995055), (28, 2567190), (30, 2396044), (35, 2053752), (40, 1797033), (42, 1711460), (56, 1283595), (60, 1198022), (70, 1026876), (83, 866040), (84, 855730), (105, 684584), (120, 599011), (140, 513438), (166, 433020), (168, 427865), (210, 342292), (249, 288680), (280, 256719), (332, 216510), (415, 173208), (420, 171146), (498, 144340), (581, 123720), (664, 108255), (830, 86604), (840, 85573), (996, 72170), (1031, 69720), (1162, 61860), (1245, 57736), (1660, 43302), (1743, 41240), (1992, 36085), (2062, 34860), (2324, 30930), (2490, 28868), (2905, 24744), (3093, 23240), (3320, 21651), (3486, 20620), (4124, 17430), (4648, 15465), (4980, 14434), (5155, 13944), (5810, 12372), (6186, 11620), (6972, 10310), (7217, 9960), (8248, 8715)]