18506320

素因数分解:

$2^4\times 5^1\times 7^2\times {\mathrm{4721}}^1$

素因数の和:4748

約数の個数: 60

約数和(自身を含む): 50062644

約数和(自身を除く): 31556324

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 49, 56, 70, 80, 98, 112, 140, 196, 245, 280, 392, 490, 560, 784, 980, 1960, 3920, 4721, 9442, 18884, 23605, 33047, 37768, 47210, 66094, 75536, 94420, 132188, 165235, 188840, 231329, 264376, 330470, 377680, 462658, 528752, 660940, 925316, 1156645, 1321880, 1850632, 2313290, 2643760, 3701264, 4626580, 9253160, 18506320]

約数ペア:

[(1, 18506320), (2, 9253160), (4, 4626580), (5, 3701264), (7, 2643760), (8, 2313290), (10, 1850632), (14, 1321880), (16, 1156645), (20, 925316), (28, 660940), (35, 528752), (40, 462658), (49, 377680), (56, 330470), (70, 264376), (80, 231329), (98, 188840), (112, 165235), (140, 132188), (196, 94420), (245, 75536), (280, 66094), (392, 47210), (490, 37768), (560, 33047), (784, 23605), (980, 18884), (1960, 9442), (3920, 4721)]