16354820

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{193}}^1\times {\mathrm{223}}^1$

素因数の和:444

約数の個数: 48

約数和(自身を含む): 36503040

約数和(自身を除く): 20148220

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 95, 190, 193, 223, 380, 386, 446, 772, 892, 965, 1115, 1930, 2230, 3667, 3860, 4237, 4460, 7334, 8474, 14668, 16948, 18335, 21185, 36670, 42370, 43039, 73340, 84740, 86078, 172156, 215195, 430390, 817741, 860780, 1635482, 3270964, 4088705, 8177410, 16354820]

約数ペア:

[(1, 16354820), (2, 8177410), (4, 4088705), (5, 3270964), (10, 1635482), (19, 860780), (20, 817741), (38, 430390), (76, 215195), (95, 172156), (190, 86078), (193, 84740), (223, 73340), (380, 43039), (386, 42370), (446, 36670), (772, 21185), (892, 18335), (965, 16948), (1115, 14668), (1930, 8474), (2230, 7334), (3667, 4460), (3860, 4237)]