1620920

素因数分解:

$2^3\times 5^1\times 7^2\times {\mathrm{827}}^1$

素因数の和:852

約数の個数: 48

約数和(自身を含む): 4247640

約数和(自身を除く): 2626720

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, 827, 980, 1654, 1960, 3308, 4135, 5789, 6616, 8270, 11578, 16540, 23156, 28945, 33080, 40523, 46312, 57890, 81046, 115780, 162092, 202615, 231560, 324184, 405230, 810460, 1620920]

約数ペア:

[(1, 1620920), (2, 810460), (4, 405230), (5, 324184), (7, 231560), (8, 202615), (10, 162092), (14, 115780), (20, 81046), (28, 57890), (35, 46312), (40, 40523), (49, 33080), (56, 28945), (70, 23156), (98, 16540), (140, 11578), (196, 8270), (245, 6616), (280, 5789), (392, 4135), (490, 3308), (827, 1960), (980, 1654)]