81926740

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{29}}^1\times {\mathrm{1187}}^1$

素因数の和:1249

約数の個数: 96

約数和(自身を含む): 215550720

約数和(自身を除く): 133623980

約数列:

[1, 2, 4, 5, 7, 10, 14, 17, 20, 28, 29, 34, 35, 58, 68, 70, 85, 116, 119, 140, 145, 170, 203, 238, 290, 340, 406, 476, 493, 580, 595, 812, 986, 1015, 1187, 1190, 1972, 2030, 2374, 2380, 2465, 3451, 4060, 4748, 4930, 5935, 6902, 8309, 9860, 11870, 13804, 16618, 17255, 20179, 23740, 33236, 34423, 34510, 40358, 41545, 68846, 69020, 80716, 83090, 100895, 137692, 141253, 166180, 172115, 201790, 240961, 282506, 344230, 403580, 481922, 565012, 585191, 688460, 706265, 963844, 1170382, 1204805, 1412530, 2340764, 2409610, 2825060, 2925955, 4096337, 4819220, 5851910, 8192674, 11703820, 16385348, 20481685, 40963370, 81926740]

約数ペア:

[(1, 81926740), (2, 40963370), (4, 20481685), (5, 16385348), (7, 11703820), (10, 8192674), (14, 5851910), (17, 4819220), (20, 4096337), (28, 2925955), (29, 2825060), (34, 2409610), (35, 2340764), (58, 1412530), (68, 1204805), (70, 1170382), (85, 963844), (116, 706265), (119, 688460), (140, 585191), (145, 565012), (170, 481922), (203, 403580), (238, 344230), (290, 282506), (340, 240961), (406, 201790), (476, 172115), (493, 166180), (580, 141253), (595, 137692), (812, 100895), (986, 83090), (1015, 80716), (1187, 69020), (1190, 68846), (1972, 41545), (2030, 40358), (2374, 34510), (2380, 34423), (2465, 33236), (3451, 23740), (4060, 20179), (4748, 17255), (4930, 16618), (5935, 13804), (6902, 11870), (8309, 9860)]