891940

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{277}}^1$

素因数の和:316

約数の個数: 48

約数和(自身を含む): 2241792

約数和(自身を除く): 1349852

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 23, 28, 35, 46, 70, 92, 115, 140, 161, 230, 277, 322, 460, 554, 644, 805, 1108, 1385, 1610, 1939, 2770, 3220, 3878, 5540, 6371, 7756, 9695, 12742, 19390, 25484, 31855, 38780, 44597, 63710, 89194, 127420, 178388, 222985, 445970, 891940]

約数ペア:

[(1, 891940), (2, 445970), (4, 222985), (5, 178388), (7, 127420), (10, 89194), (14, 63710), (20, 44597), (23, 38780), (28, 31855), (35, 25484), (46, 19390), (70, 12742), (92, 9695), (115, 7756), (140, 6371), (161, 5540), (230, 3878), (277, 3220), (322, 2770), (460, 1939), (554, 1610), (644, 1385), (805, 1108)]