81758320

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{83}}^1\times {\mathrm{1759}}^1$

素因数の和:1862

約数の個数: 80

約数和(自身を含む): 219985920

約数和(自身を除く): 138227600

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 80, 83, 112, 140, 166, 280, 332, 415, 560, 581, 664, 830, 1162, 1328, 1660, 1759, 2324, 2905, 3320, 3518, 4648, 5810, 6640, 7036, 8795, 9296, 11620, 12313, 14072, 17590, 23240, 24626, 28144, 35180, 46480, 49252, 61565, 70360, 98504, 123130, 140720, 145997, 197008, 246260, 291994, 492520, 583988, 729985, 985040, 1021979, 1167976, 1459970, 2043958, 2335952, 2919940, 4087916, 5109895, 5839880, 8175832, 10219790, 11679760, 16351664, 20439580, 40879160, 81758320]

約数ペア:

[(1, 81758320), (2, 40879160), (4, 20439580), (5, 16351664), (7, 11679760), (8, 10219790), (10, 8175832), (14, 5839880), (16, 5109895), (20, 4087916), (28, 2919940), (35, 2335952), (40, 2043958), (56, 1459970), (70, 1167976), (80, 1021979), (83, 985040), (112, 729985), (140, 583988), (166, 492520), (280, 291994), (332, 246260), (415, 197008), (560, 145997), (581, 140720), (664, 123130), (830, 98504), (1162, 70360), (1328, 61565), (1660, 49252), (1759, 46480), (2324, 35180), (2905, 28144), (3320, 24626), (3518, 23240), (4648, 17590), (5810, 14072), (6640, 12313), (7036, 11620), (8795, 9296)]