28311108

素因数分解:

$2^2\times 3^1\times 7^1\times {\mathrm{47}}^1\times {\mathrm{71}}^1\times {\mathrm{101}}^1$

素因数の和:233

約数の個数: 96

約数和(自身を含む): 78962688

約数和(自身を除く): 50651580

約数列:

[1, 2, 3, 4, 6, 7, 12, 14, 21, 28, 42, 47, 71, 84, 94, 101, 141, 142, 188, 202, 213, 282, 284, 303, 329, 404, 426, 497, 564, 606, 658, 707, 852, 987, 994, 1212, 1316, 1414, 1491, 1974, 1988, 2121, 2828, 2982, 3337, 3948, 4242, 4747, 5964, 6674, 7171, 8484, 9494, 10011, 13348, 14241, 14342, 18988, 20022, 21513, 23359, 28482, 28684, 33229, 40044, 43026, 46718, 50197, 56964, 66458, 70077, 86052, 93436, 99687, 100394, 132916, 140154, 150591, 199374, 200788, 280308, 301182, 337037, 398748, 602364, 674074, 1011111, 1348148, 2022222, 2359259, 4044444, 4718518, 7077777, 9437036, 14155554, 28311108]

約数ペア:

[(1, 28311108), (2, 14155554), (3, 9437036), (4, 7077777), (6, 4718518), (7, 4044444), (12, 2359259), (14, 2022222), (21, 1348148), (28, 1011111), (42, 674074), (47, 602364), (71, 398748), (84, 337037), (94, 301182), (101, 280308), (141, 200788), (142, 199374), (188, 150591), (202, 140154), (213, 132916), (282, 100394), (284, 99687), (303, 93436), (329, 86052), (404, 70077), (426, 66458), (497, 56964), (564, 50197), (606, 46718), (658, 43026), (707, 40044), (852, 33229), (987, 28684), (994, 28482), (1212, 23359), (1316, 21513), (1414, 20022), (1491, 18988), (1974, 14342), (1988, 14241), (2121, 13348), (2828, 10011), (2982, 9494), (3337, 8484), (3948, 7171), (4242, 6674), (4747, 5964)]