2161880

素因数分解:

$2^3\times 5^1\times 7^2\times {\mathrm{1103}}^1$

素因数の和:1128

約数の個数: 48

約数和(自身を含む): 5663520

約数和(自身を除く): 3501640

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, 1103, 1960, 2206, 4412, 5515, 7721, 8824, 11030, 15442, 22060, 30884, 38605, 44120, 54047, 61768, 77210, 108094, 154420, 216188, 270235, 308840, 432376, 540470, 1080940, 2161880]

約数ペア:

[(1, 2161880), (2, 1080940), (4, 540470), (5, 432376), (7, 308840), (8, 270235), (10, 216188), (14, 154420), (20, 108094), (28, 77210), (35, 61768), (40, 54047), (49, 44120), (56, 38605), (70, 30884), (98, 22060), (140, 15442), (196, 11030), (245, 8824), (280, 7721), (392, 5515), (490, 4412), (980, 2206), (1103, 1960)]