78400840

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{14737}}^1$

素因数の和:14774

約数の個数: 64

約数和(自身を含む): 212227200

約数和(自身を除く): 133826360

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 19, 20, 28, 35, 38, 40, 56, 70, 76, 95, 133, 140, 152, 190, 266, 280, 380, 532, 665, 760, 1064, 1330, 2660, 5320, 14737, 29474, 58948, 73685, 103159, 117896, 147370, 206318, 280003, 294740, 412636, 515795, 560006, 589480, 825272, 1031590, 1120012, 1400015, 1960021, 2063180, 2240024, 2800030, 3920042, 4126360, 5600060, 7840084, 9800105, 11200120, 15680168, 19600210, 39200420, 78400840]

約数ペア:

[(1, 78400840), (2, 39200420), (4, 19600210), (5, 15680168), (7, 11200120), (8, 9800105), (10, 7840084), (14, 5600060), (19, 4126360), (20, 3920042), (28, 2800030), (35, 2240024), (38, 2063180), (40, 1960021), (56, 1400015), (70, 1120012), (76, 1031590), (95, 825272), (133, 589480), (140, 560006), (152, 515795), (190, 412636), (266, 294740), (280, 280003), (380, 206318), (532, 147370), (665, 117896), (760, 103159), (1064, 73685), (1330, 58948), (2660, 29474), (5320, 14737)]