640319260

素因数分解:

$2^2\times 5^1\times 7^3\times {\mathrm{31}}^1\times {\mathrm{3011}}^1$

素因数の和:3072

約数の個数: 96

約数和(自身を含む): 1619251200

約数和(自身を除く): 978931940

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 31, 35, 49, 62, 70, 98, 124, 140, 155, 196, 217, 245, 310, 343, 434, 490, 620, 686, 868, 980, 1085, 1372, 1519, 1715, 2170, 3011, 3038, 3430, 4340, 6022, 6076, 6860, 7595, 10633, 12044, 15055, 15190, 21077, 21266, 30110, 30380, 42154, 42532, 53165, 60220, 84308, 93341, 105385, 106330, 147539, 186682, 210770, 212660, 295078, 373364, 421540, 466705, 590156, 653387, 737695, 933410, 1032773, 1306774, 1475390, 1866820, 2065546, 2613548, 2950780, 3266935, 4131092, 4573709, 5163865, 6533870, 9147418, 10327730, 13067740, 18294836, 20655460, 22868545, 32015963, 45737090, 64031926, 91474180, 128063852, 160079815, 320159630, 640319260]

約数ペア:

[(1, 640319260), (2, 320159630), (4, 160079815), (5, 128063852), (7, 91474180), (10, 64031926), (14, 45737090), (20, 32015963), (28, 22868545), (31, 20655460), (35, 18294836), (49, 13067740), (62, 10327730), (70, 9147418), (98, 6533870), (124, 5163865), (140, 4573709), (155, 4131092), (196, 3266935), (217, 2950780), (245, 2613548), (310, 2065546), (343, 1866820), (434, 1475390), (490, 1306774), (620, 1032773), (686, 933410), (868, 737695), (980, 653387), (1085, 590156), (1372, 466705), (1519, 421540), (1715, 373364), (2170, 295078), (3011, 212660), (3038, 210770), (3430, 186682), (4340, 147539), (6022, 106330), (6076, 105385), (6860, 93341), (7595, 84308), (10633, 60220), (12044, 53165), (15055, 42532), (15190, 42154), (21077, 30380), (21266, 30110)]