1221290

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{73}}^1\times {\mathrm{239}}^1$

素因数の和:326

約数の個数: 32

約数和(自身を含む): 2557440

約数和(自身を除く): 1336150

約数列:

[1, 2, 5, 7, 10, 14, 35, 70, 73, 146, 239, 365, 478, 511, 730, 1022, 1195, 1673, 2390, 2555, 3346, 5110, 8365, 16730, 17447, 34894, 87235, 122129, 174470, 244258, 610645, 1221290]

約数ペア:

[(1, 1221290), (2, 610645), (5, 244258), (7, 174470), (10, 122129), (14, 87235), (35, 34894), (70, 17447), (73, 16730), (146, 8365), (239, 5110), (365, 3346), (478, 2555), (511, 2390), (730, 1673), (1022, 1195)]