19907790

素因数分解:

$2^1\times 3^1\times 5^1\times 7^1\times {\mathrm{47}}^1\times {\mathrm{2017}}^1$

素因数の和:2081

約数の個数: 64

約数和(自身を含む): 55793664

約数和(自身を除く): 35885874

約数列:

[1, 2, 3, 5, 6, 7, 10, 14, 15, 21, 30, 35, 42, 47, 70, 94, 105, 141, 210, 235, 282, 329, 470, 658, 705, 987, 1410, 1645, 1974, 2017, 3290, 4034, 4935, 6051, 9870, 10085, 12102, 14119, 20170, 28238, 30255, 42357, 60510, 70595, 84714, 94799, 141190, 189598, 211785, 284397, 423570, 473995, 568794, 663593, 947990, 1327186, 1421985, 1990779, 2843970, 3317965, 3981558, 6635930, 9953895, 19907790]

約数ペア:

[(1, 19907790), (2, 9953895), (3, 6635930), (5, 3981558), (6, 3317965), (7, 2843970), (10, 1990779), (14, 1421985), (15, 1327186), (21, 947990), (30, 663593), (35, 568794), (42, 473995), (47, 423570), (70, 284397), (94, 211785), (105, 189598), (141, 141190), (210, 94799), (235, 84714), (282, 70595), (329, 60510), (470, 42357), (658, 30255), (705, 28238), (987, 20170), (1410, 14119), (1645, 12102), (1974, 10085), (2017, 9870), (3290, 6051), (4034, 4935)]