78391180

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{41}}^1\times {\mathrm{1951}}^1$

素因数の和:2015

約数の個数: 72

約数和(自身を含む): 196269696

約数和(自身を除く): 117878516

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 41, 49, 70, 82, 98, 140, 164, 196, 205, 245, 287, 410, 490, 574, 820, 980, 1148, 1435, 1951, 2009, 2870, 3902, 4018, 5740, 7804, 8036, 9755, 10045, 13657, 19510, 20090, 27314, 39020, 40180, 54628, 68285, 79991, 95599, 136570, 159982, 191198, 273140, 319964, 382396, 399955, 477995, 559937, 799910, 955990, 1119874, 1599820, 1911980, 2239748, 2799685, 3919559, 5599370, 7839118, 11198740, 15678236, 19597795, 39195590, 78391180]

約数ペア:

[(1, 78391180), (2, 39195590), (4, 19597795), (5, 15678236), (7, 11198740), (10, 7839118), (14, 5599370), (20, 3919559), (28, 2799685), (35, 2239748), (41, 1911980), (49, 1599820), (70, 1119874), (82, 955990), (98, 799910), (140, 559937), (164, 477995), (196, 399955), (205, 382396), (245, 319964), (287, 273140), (410, 191198), (490, 159982), (574, 136570), (820, 95599), (980, 79991), (1148, 68285), (1435, 54628), (1951, 40180), (2009, 39020), (2870, 27314), (3902, 20090), (4018, 19510), (5740, 13657), (7804, 10045), (8036, 9755)]