1557820

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{73}}^1\times {\mathrm{97}}^1$

素因数の和:190

約数の個数: 48

約数和(自身を含む): 3655008

約数和(自身を除く): 2097188

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 73, 97, 110, 146, 194, 220, 292, 365, 388, 485, 730, 803, 970, 1067, 1460, 1606, 1940, 2134, 3212, 4015, 4268, 5335, 7081, 8030, 10670, 14162, 16060, 21340, 28324, 35405, 70810, 77891, 141620, 155782, 311564, 389455, 778910, 1557820]

約数ペア:

[(1, 1557820), (2, 778910), (4, 389455), (5, 311564), (10, 155782), (11, 141620), (20, 77891), (22, 70810), (44, 35405), (55, 28324), (73, 21340), (97, 16060), (110, 14162), (146, 10670), (194, 8030), (220, 7081), (292, 5335), (365, 4268), (388, 4015), (485, 3212), (730, 2134), (803, 1940), (970, 1606), (1067, 1460)]