220026884

素因数分解:

$2^2\times 7^1\times {\mathrm{11}}^2\times {\mathrm{101}}^1\times {\mathrm{643}}^1$

素因数の和:777

約数の個数: 72

約数和(自身を含む): 489244224

約数和(自身を除く): 269217340

約数列:

[1, 2, 4, 7, 11, 14, 22, 28, 44, 77, 101, 121, 154, 202, 242, 308, 404, 484, 643, 707, 847, 1111, 1286, 1414, 1694, 2222, 2572, 2828, 3388, 4444, 4501, 7073, 7777, 9002, 12221, 14146, 15554, 18004, 24442, 28292, 31108, 48884, 49511, 64943, 77803, 85547, 99022, 129886, 155606, 171094, 198044, 259772, 311212, 342188, 454601, 544621, 714373, 909202, 1089242, 1428746, 1818404, 2178484, 2857492, 5000611, 7858103, 10001222, 15716206, 20002444, 31432412, 55006721, 110013442, 220026884]

約数ペア:

[(1, 220026884), (2, 110013442), (4, 55006721), (7, 31432412), (11, 20002444), (14, 15716206), (22, 10001222), (28, 7858103), (44, 5000611), (77, 2857492), (101, 2178484), (121, 1818404), (154, 1428746), (202, 1089242), (242, 909202), (308, 714373), (404, 544621), (484, 454601), (643, 342188), (707, 311212), (847, 259772), (1111, 198044), (1286, 171094), (1414, 155606), (1694, 129886), (2222, 99022), (2572, 85547), (2828, 77803), (3388, 64943), (4444, 49511), (4501, 48884), (7073, 31108), (7777, 28292), (9002, 24442), (12221, 18004), (14146, 15554)]