309871880

素因数分解:

$2^3\times 5^1\times {\mathrm{223}}^1\times {\mathrm{34739}}^1$

素因数の和:34973

約数の個数: 32

約数和(自身を含む): 700358400

約数和(自身を除く): 390486520

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 223, 446, 892, 1115, 1784, 2230, 4460, 8920, 34739, 69478, 138956, 173695, 277912, 347390, 694780, 1389560, 7746797, 15493594, 30987188, 38733985, 61974376, 77467970, 154935940, 309871880]

約数ペア:

[(1, 309871880), (2, 154935940), (4, 77467970), (5, 61974376), (8, 38733985), (10, 30987188), (20, 15493594), (40, 7746797), (223, 1389560), (446, 694780), (892, 347390), (1115, 277912), (1784, 173695), (2230, 138956), (4460, 69478), (8920, 34739)]