1880821040

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{149}}^1\times {\mathrm{22541}}^1$

素因数の和:22710

約数の個数: 80

約数和(自身を含む): 5031374400

約数和(自身を除く): 3150553360

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 80, 112, 140, 149, 280, 298, 560, 596, 745, 1043, 1192, 1490, 2086, 2384, 2980, 4172, 5215, 5960, 8344, 10430, 11920, 16688, 20860, 22541, 41720, 45082, 83440, 90164, 112705, 157787, 180328, 225410, 315574, 360656, 450820, 631148, 788935, 901640, 1262296, 1577870, 1803280, 2524592, 3155740, 3358609, 6311480, 6717218, 12622960, 13434436, 16793045, 23510263, 26868872, 33586090, 47020526, 53737744, 67172180, 94041052, 117551315, 134344360, 188082104, 235102630, 268688720, 376164208, 470205260, 940410520, 1880821040]

約数ペア:

[(1, 1880821040), (2, 940410520), (4, 470205260), (5, 376164208), (7, 268688720), (8, 235102630), (10, 188082104), (14, 134344360), (16, 117551315), (20, 94041052), (28, 67172180), (35, 53737744), (40, 47020526), (56, 33586090), (70, 26868872), (80, 23510263), (112, 16793045), (140, 13434436), (149, 12622960), (280, 6717218), (298, 6311480), (560, 3358609), (596, 3155740), (745, 2524592), (1043, 1803280), (1192, 1577870), (1490, 1262296), (2086, 901640), (2384, 788935), (2980, 631148), (4172, 450820), (5215, 360656), (5960, 315574), (8344, 225410), (10430, 180328), (11920, 157787), (16688, 112705), (20860, 90164), (22541, 83440), (41720, 45082)]