505780

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^3\times {\mathrm{19}}^1$

素因数の和:61

約数の個数: 48

約数和(自身を含む): 1229760

約数和(自身を除く): 723980

約数列:

[1, 2, 4, 5, 10, 11, 19, 20, 22, 38, 44, 55, 76, 95, 110, 121, 190, 209, 220, 242, 380, 418, 484, 605, 836, 1045, 1210, 1331, 2090, 2299, 2420, 2662, 4180, 4598, 5324, 6655, 9196, 11495, 13310, 22990, 25289, 26620, 45980, 50578, 101156, 126445, 252890, 505780]

約数ペア:

[(1, 505780), (2, 252890), (4, 126445), (5, 101156), (10, 50578), (11, 45980), (19, 26620), (20, 25289), (22, 22990), (38, 13310), (44, 11495), (55, 9196), (76, 6655), (95, 5324), (110, 4598), (121, 4180), (190, 2662), (209, 2420), (220, 2299), (242, 2090), (380, 1331), (418, 1210), (484, 1045), (605, 836)]