209215940

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{615341}}^1$

素因数の和:615367

約数の個数: 24

約数和(自身を含む): 465198552

約数和(自身を除く): 255982612

約数列:

[1, 2, 4, 5, 10, 17, 20, 34, 68, 85, 170, 340, 615341, 1230682, 2461364, 3076705, 6153410, 10460797, 12306820, 20921594, 41843188, 52303985, 104607970, 209215940]

約数ペア:

[(1, 209215940), (2, 104607970), (4, 52303985), (5, 41843188), (10, 20921594), (17, 12306820), (20, 10460797), (34, 6153410), (68, 3076705), (85, 2461364), (170, 1230682), (340, 615341)]