20188075460

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{367}}^1\times {\mathrm{56131}}^1$

素因数の和:56521

約数の個数: 72

約数和(自身を含む): 49451842944

約数和(自身を除く): 29263767484

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 49, 70, 98, 140, 196, 245, 367, 490, 734, 980, 1468, 1835, 2569, 3670, 5138, 7340, 10276, 12845, 17983, 25690, 35966, 51380, 56131, 71932, 89915, 112262, 179830, 224524, 280655, 359660, 392917, 561310, 785834, 1122620, 1571668, 1964585, 2750419, 3929170, 5500838, 7858340, 11001676, 13752095, 20600077, 27504190, 41200154, 55008380, 82400308, 103000385, 144200539, 206000770, 288401078, 412001540, 576802156, 721002695, 1009403773, 1442005390, 2018807546, 2884010780, 4037615092, 5047018865, 10094037730, 20188075460]

約数ペア:

[(1, 20188075460), (2, 10094037730), (4, 5047018865), (5, 4037615092), (7, 2884010780), (10, 2018807546), (14, 1442005390), (20, 1009403773), (28, 721002695), (35, 576802156), (49, 412001540), (70, 288401078), (98, 206000770), (140, 144200539), (196, 103000385), (245, 82400308), (367, 55008380), (490, 41200154), (734, 27504190), (980, 20600077), (1468, 13752095), (1835, 11001676), (2569, 7858340), (3670, 5500838), (5138, 3929170), (7340, 2750419), (10276, 1964585), (12845, 1571668), (17983, 1122620), (25690, 785834), (35966, 561310), (51380, 392917), (56131, 359660), (71932, 280655), (89915, 224524), (112262, 179830)]