18997300

素因数分解:

$2^2\times 5^2\times 7^2\times {\mathrm{3877}}^1$

素因数の和:3905

約数の個数: 54

約数和(自身を含む): 47966982

約数和(自身を除く): 28969682

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 25, 28, 35, 49, 50, 70, 98, 100, 140, 175, 196, 245, 350, 490, 700, 980, 1225, 2450, 3877, 4900, 7754, 15508, 19385, 27139, 38770, 54278, 77540, 96925, 108556, 135695, 189973, 193850, 271390, 379946, 387700, 542780, 678475, 759892, 949865, 1356950, 1899730, 2713900, 3799460, 4749325, 9498650, 18997300]

約数ペア:

[(1, 18997300), (2, 9498650), (4, 4749325), (5, 3799460), (7, 2713900), (10, 1899730), (14, 1356950), (20, 949865), (25, 759892), (28, 678475), (35, 542780), (49, 387700), (50, 379946), (70, 271390), (98, 193850), (100, 189973), (140, 135695), (175, 108556), (196, 96925), (245, 77540), (350, 54278), (490, 38770), (700, 27139), (980, 19385), (1225, 15508), (2450, 7754), (3877, 4900)]