321860

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{11}}^2\times {\mathrm{19}}^1$

素因数の和:57

約数の個数: 72

約数和(自身を含む): 893760

約数和(自身を除く): 571900

約数列:

[1, 2, 4, 5, 7, 10, 11, 14, 19, 20, 22, 28, 35, 38, 44, 55, 70, 76, 77, 95, 110, 121, 133, 140, 154, 190, 209, 220, 242, 266, 308, 380, 385, 418, 484, 532, 605, 665, 770, 836, 847, 1045, 1210, 1330, 1463, 1540, 1694, 2090, 2299, 2420, 2660, 2926, 3388, 4180, 4235, 4598, 5852, 7315, 8470, 9196, 11495, 14630, 16093, 16940, 22990, 29260, 32186, 45980, 64372, 80465, 160930, 321860]

約数ペア:

[(1, 321860), (2, 160930), (4, 80465), (5, 64372), (7, 45980), (10, 32186), (11, 29260), (14, 22990), (19, 16940), (20, 16093), (22, 14630), (28, 11495), (35, 9196), (38, 8470), (44, 7315), (55, 5852), (70, 4598), (76, 4235), (77, 4180), (95, 3388), (110, 2926), (121, 2660), (133, 2420), (140, 2299), (154, 2090), (190, 1694), (209, 1540), (220, 1463), (242, 1330), (266, 1210), (308, 1045), (380, 847), (385, 836), (418, 770), (484, 665), (532, 605)]