18661160

素因数分解:

$2^3\times 5^1\times 7^2\times {\mathrm{9521}}^1$

素因数の和:9546

約数の個数: 48

約数和(自身を含む): 48847860

約数和(自身を除く): 30186700

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 49, 56, 70, 98, 140, 196, 245, 280, 392, 490, 980, 1960, 9521, 19042, 38084, 47605, 66647, 76168, 95210, 133294, 190420, 266588, 333235, 380840, 466529, 533176, 666470, 933058, 1332940, 1866116, 2332645, 2665880, 3732232, 4665290, 9330580, 18661160]

約数ペア:

[(1, 18661160), (2, 9330580), (4, 4665290), (5, 3732232), (7, 2665880), (8, 2332645), (10, 1866116), (14, 1332940), (20, 933058), (28, 666470), (35, 533176), (40, 466529), (49, 380840), (56, 333235), (70, 266588), (98, 190420), (140, 133294), (196, 95210), (245, 76168), (280, 66647), (392, 47605), (490, 38084), (980, 19042), (1960, 9521)]