1330404040

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{89}}^1\times {\mathrm{197}}^1\times {\mathrm{271}}^1$

素因数の和:575

約数の個数: 128

約数和(自身を含む): 3489868800

約数和(自身を除く): 2159464760

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 89, 140, 178, 197, 271, 280, 356, 394, 445, 542, 623, 712, 788, 890, 985, 1084, 1246, 1355, 1379, 1576, 1780, 1897, 1970, 2168, 2492, 2710, 2758, 3115, 3560, 3794, 3940, 4984, 5420, 5516, 6230, 6895, 7588, 7880, 9485, 10840, 11032, 12460, 13790, 15176, 17533, 18970, 24119, 24920, 27580, 35066, 37940, 48238, 53387, 55160, 70132, 75880, 87665, 96476, 106774, 120595, 122731, 140264, 168833, 175330, 192952, 213548, 241190, 245462, 266935, 337666, 350660, 373709, 427096, 482380, 490924, 533870, 613655, 675332, 701320, 747418, 844165, 964760, 981848, 1067740, 1227310, 1350664, 1494836, 1688330, 1868545, 2135480, 2454620, 2989672, 3376660, 3737090, 4751443, 4909240, 6753320, 7474180, 9502886, 14948360, 19005772, 23757215, 33260101, 38011544, 47514430, 66520202, 95028860, 133040404, 166300505, 190057720, 266080808, 332601010, 665202020, 1330404040]

約数ペア:

[(1, 1330404040), (2, 665202020), (4, 332601010), (5, 266080808), (7, 190057720), (8, 166300505), (10, 133040404), (14, 95028860), (20, 66520202), (28, 47514430), (35, 38011544), (40, 33260101), (56, 23757215), (70, 19005772), (89, 14948360), (140, 9502886), (178, 7474180), (197, 6753320), (271, 4909240), (280, 4751443), (356, 3737090), (394, 3376660), (445, 2989672), (542, 2454620), (623, 2135480), (712, 1868545), (788, 1688330), (890, 1494836), (985, 1350664), (1084, 1227310), (1246, 1067740), (1355, 981848), (1379, 964760), (1576, 844165), (1780, 747418), (1897, 701320), (1970, 675332), (2168, 613655), (2492, 533870), (2710, 490924), (2758, 482380), (3115, 427096), (3560, 373709), (3794, 350660), (3940, 337666), (4984, 266935), (5420, 245462), (5516, 241190), (6230, 213548), (6895, 192952), (7588, 175330), (7880, 168833), (9485, 140264), (10840, 122731), (11032, 120595), (12460, 106774), (13790, 96476), (15176, 87665), (17533, 75880), (18970, 70132), (24119, 55160), (24920, 53387), (27580, 48238), (35066, 37940)]