190057720

素因数分解:

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

素因数の和:568

約数の個数: 64

約数和(自身を含む): 436233600

約数和(自身を除く): 246175880

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 89, 178, 197, 271, 356, 394, 445, 542, 712, 788, 890, 985, 1084, 1355, 1576, 1780, 1970, 2168, 2710, 3560, 3940, 5420, 7880, 10840, 17533, 24119, 35066, 48238, 53387, 70132, 87665, 96476, 106774, 120595, 140264, 175330, 192952, 213548, 241190, 266935, 350660, 427096, 482380, 533870, 701320, 964760, 1067740, 2135480, 4751443, 9502886, 19005772, 23757215, 38011544, 47514430, 95028860, 190057720]

約数ペア:

[(1, 190057720), (2, 95028860), (4, 47514430), (5, 38011544), (8, 23757215), (10, 19005772), (20, 9502886), (40, 4751443), (89, 2135480), (178, 1067740), (197, 964760), (271, 701320), (356, 533870), (394, 482380), (445, 427096), (542, 350660), (712, 266935), (788, 241190), (890, 213548), (985, 192952), (1084, 175330), (1355, 140264), (1576, 120595), (1780, 106774), (1970, 96476), (2168, 87665), (2710, 70132), (3560, 53387), (3940, 48238), (5420, 35066), (7880, 24119), (10840, 17533)]