389620

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{11}}^2\times {\mathrm{23}}^1$

素因数の和:61

約数の個数: 72

約数和(自身を含む): 1072512

約数和(自身を除く): 682892

約数列:

[1, 2, 4, 5, 7, 10, 11, 14, 20, 22, 23, 28, 35, 44, 46, 55, 70, 77, 92, 110, 115, 121, 140, 154, 161, 220, 230, 242, 253, 308, 322, 385, 460, 484, 506, 605, 644, 770, 805, 847, 1012, 1210, 1265, 1540, 1610, 1694, 1771, 2420, 2530, 2783, 3220, 3388, 3542, 4235, 5060, 5566, 7084, 8470, 8855, 11132, 13915, 16940, 17710, 19481, 27830, 35420, 38962, 55660, 77924, 97405, 194810, 389620]

約数ペア:

[(1, 389620), (2, 194810), (4, 97405), (5, 77924), (7, 55660), (10, 38962), (11, 35420), (14, 27830), (20, 19481), (22, 17710), (23, 16940), (28, 13915), (35, 11132), (44, 8855), (46, 8470), (55, 7084), (70, 5566), (77, 5060), (92, 4235), (110, 3542), (115, 3388), (121, 3220), (140, 2783), (154, 2530), (161, 2420), (220, 1771), (230, 1694), (242, 1610), (253, 1540), (308, 1265), (322, 1210), (385, 1012), (460, 847), (484, 805), (506, 770), (605, 644)]