18702740

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{103}}^1\times {\mathrm{1297}}^1$

素因数の和:1416

約数の個数: 48

約数和(自身を含む): 45357312

約数和(自身を除く): 26654572

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 103, 140, 206, 412, 515, 721, 1030, 1297, 1442, 2060, 2594, 2884, 3605, 5188, 6485, 7210, 9079, 12970, 14420, 18158, 25940, 36316, 45395, 90790, 133591, 181580, 267182, 534364, 667955, 935137, 1335910, 1870274, 2671820, 3740548, 4675685, 9351370, 18702740]

約数ペア:

[(1, 18702740), (2, 9351370), (4, 4675685), (5, 3740548), (7, 2671820), (10, 1870274), (14, 1335910), (20, 935137), (28, 667955), (35, 534364), (70, 267182), (103, 181580), (140, 133591), (206, 90790), (412, 45395), (515, 36316), (721, 25940), (1030, 18158), (1297, 14420), (1442, 12970), (2060, 9079), (2594, 7210), (2884, 6485), (3605, 5188)]