78456140

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{691}}^1\times {\mathrm{811}}^1$

素因数の和:1518

約数の個数: 48

約数和(自身を含む): 188799744

約数和(自身を除く): 110343604

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 691, 811, 1382, 1622, 2764, 3244, 3455, 4055, 4837, 5677, 6910, 8110, 9674, 11354, 13820, 16220, 19348, 22708, 24185, 28385, 48370, 56770, 96740, 113540, 560401, 1120802, 2241604, 2802005, 3922807, 5604010, 7845614, 11208020, 15691228, 19614035, 39228070, 78456140]

約数ペア:

[(1, 78456140), (2, 39228070), (4, 19614035), (5, 15691228), (7, 11208020), (10, 7845614), (14, 5604010), (20, 3922807), (28, 2802005), (35, 2241604), (70, 1120802), (140, 560401), (691, 113540), (811, 96740), (1382, 56770), (1622, 48370), (2764, 28385), (3244, 24185), (3455, 22708), (4055, 19348), (4837, 16220), (5677, 13820), (6910, 11354), (8110, 9674)]