18278470

素因数分解:

$2^1\times 5^1\times 7^3\times {\mathrm{73}}^2$

素因数の和:174

約数の個数: 48

約数和(自身を含む): 38901600

約数和(自身を除く): 20623130

約数列:

[1, 2, 5, 7, 10, 14, 35, 49, 70, 73, 98, 146, 245, 343, 365, 490, 511, 686, 730, 1022, 1715, 2555, 3430, 3577, 5110, 5329, 7154, 10658, 17885, 25039, 26645, 35770, 37303, 50078, 53290, 74606, 125195, 186515, 250390, 261121, 373030, 522242, 1305605, 1827847, 2611210, 3655694, 9139235, 18278470]

約数ペア:

[(1, 18278470), (2, 9139235), (5, 3655694), (7, 2611210), (10, 1827847), (14, 1305605), (35, 522242), (49, 373030), (70, 261121), (73, 250390), (98, 186515), (146, 125195), (245, 74606), (343, 53290), (365, 50078), (490, 37303), (511, 35770), (686, 26645), (730, 25039), (1022, 17885), (1715, 10658), (2555, 7154), (3430, 5329), (3577, 5110)]