838420

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{37}}^1\times {\mathrm{103}}^1$

素因数の和:160

約数の個数: 48

約数和(自身を含む): 1991808

約数和(自身を除く): 1153388

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 37, 44, 55, 74, 103, 110, 148, 185, 206, 220, 370, 407, 412, 515, 740, 814, 1030, 1133, 1628, 2035, 2060, 2266, 3811, 4070, 4532, 5665, 7622, 8140, 11330, 15244, 19055, 22660, 38110, 41921, 76220, 83842, 167684, 209605, 419210, 838420]

約数ペア:

[(1, 838420), (2, 419210), (4, 209605), (5, 167684), (10, 83842), (11, 76220), (20, 41921), (22, 38110), (37, 22660), (44, 19055), (55, 15244), (74, 11330), (103, 8140), (110, 7622), (148, 5665), (185, 4532), (206, 4070), (220, 3811), (370, 2266), (407, 2060), (412, 2035), (515, 1628), (740, 1133), (814, 1030)]