20104681940

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{1117}}^1\times {\mathrm{128563}}^1$

素因数の和:129696

約数の個数: 48

約数和(自身を含む): 48294809472

約数和(自身を除く): 28190127532

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 1117, 2234, 4468, 5585, 7819, 11170, 15638, 22340, 31276, 39095, 78190, 128563, 156380, 257126, 514252, 642815, 899941, 1285630, 1799882, 2571260, 3599764, 4499705, 8999410, 17998820, 143604871, 287209742, 574419484, 718024355, 1005234097, 1436048710, 2010468194, 2872097420, 4020936388, 5026170485, 10052340970, 20104681940]

約数ペア:

[(1, 20104681940), (2, 10052340970), (4, 5026170485), (5, 4020936388), (7, 2872097420), (10, 2010468194), (14, 1436048710), (20, 1005234097), (28, 718024355), (35, 574419484), (70, 287209742), (140, 143604871), (1117, 17998820), (2234, 8999410), (4468, 4499705), (5585, 3599764), (7819, 2571260), (11170, 1799882), (15638, 1285630), (22340, 899941), (31276, 642815), (39095, 514252), (78190, 257126), (128563, 156380)]