4409020

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{11}}^1\times {\mathrm{409}}^1$

素因数の和:443

約数の個数: 72

約数和(自身を含む): 11778480

約数和(自身を除く): 7369460

約数列:

[1, 2, 4, 5, 7, 10, 11, 14, 20, 22, 28, 35, 44, 49, 55, 70, 77, 98, 110, 140, 154, 196, 220, 245, 308, 385, 409, 490, 539, 770, 818, 980, 1078, 1540, 1636, 2045, 2156, 2695, 2863, 4090, 4499, 5390, 5726, 8180, 8998, 10780, 11452, 14315, 17996, 20041, 22495, 28630, 31493, 40082, 44990, 57260, 62986, 80164, 89980, 100205, 125972, 157465, 200410, 220451, 314930, 400820, 440902, 629860, 881804, 1102255, 2204510, 4409020]

約数ペア:

[(1, 4409020), (2, 2204510), (4, 1102255), (5, 881804), (7, 629860), (10, 440902), (11, 400820), (14, 314930), (20, 220451), (22, 200410), (28, 157465), (35, 125972), (44, 100205), (49, 89980), (55, 80164), (70, 62986), (77, 57260), (98, 44990), (110, 40082), (140, 31493), (154, 28630), (196, 22495), (220, 20041), (245, 17996), (308, 14315), (385, 11452), (409, 10780), (490, 8998), (539, 8180), (770, 5726), (818, 5390), (980, 4499), (1078, 4090), (1540, 2863), (1636, 2695), (2045, 2156)]