68878516

素因数分解:

$2^2\times 7^3\times {\mathrm{61}}^1\times {\mathrm{823}}^1$

素因数の和:909

約数の個数: 48

約数和(自身を含む): 143046400

約数和(自身を除く): 74167884

約数列:

[1, 2, 4, 7, 14, 28, 49, 61, 98, 122, 196, 244, 343, 427, 686, 823, 854, 1372, 1646, 1708, 2989, 3292, 5761, 5978, 11522, 11956, 20923, 23044, 40327, 41846, 50203, 80654, 83692, 100406, 161308, 200812, 282289, 351421, 564578, 702842, 1129156, 1405684, 2459947, 4919894, 9839788, 17219629, 34439258, 68878516]

約数ペア:

[(1, 68878516), (2, 34439258), (4, 17219629), (7, 9839788), (14, 4919894), (28, 2459947), (49, 1405684), (61, 1129156), (98, 702842), (122, 564578), (196, 351421), (244, 282289), (343, 200812), (427, 161308), (686, 100406), (823, 83692), (854, 80654), (1372, 50203), (1646, 41846), (1708, 40327), (2989, 23044), (3292, 20923), (5761, 11956), (5978, 11522)]