204060160

素因数分解:

$2^9\times 5^1\times {\mathrm{79}}^1\times {\mathrm{1009}}^1$

素因数の和:1111

約数の個数: 80

約数和(自身を含む): 495950400

約数和(自身を除く): 291890240

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 79, 80, 128, 158, 160, 256, 316, 320, 395, 512, 632, 640, 790, 1009, 1264, 1280, 1580, 2018, 2528, 2560, 3160, 4036, 5045, 5056, 6320, 8072, 10090, 10112, 12640, 16144, 20180, 20224, 25280, 32288, 40360, 40448, 50560, 64576, 79711, 80720, 101120, 129152, 159422, 161440, 202240, 258304, 318844, 322880, 398555, 516608, 637688, 645760, 797110, 1275376, 1291520, 1594220, 2550752, 2583040, 3188440, 5101504, 6376880, 10203008, 12753760, 20406016, 25507520, 40812032, 51015040, 102030080, 204060160]

約数ペア:

[(1, 204060160), (2, 102030080), (4, 51015040), (5, 40812032), (8, 25507520), (10, 20406016), (16, 12753760), (20, 10203008), (32, 6376880), (40, 5101504), (64, 3188440), (79, 2583040), (80, 2550752), (128, 1594220), (158, 1291520), (160, 1275376), (256, 797110), (316, 645760), (320, 637688), (395, 516608), (512, 398555), (632, 322880), (640, 318844), (790, 258304), (1009, 202240), (1264, 161440), (1280, 159422), (1580, 129152), (2018, 101120), (2528, 80720), (2560, 79711), (3160, 64576), (4036, 50560), (5045, 40448), (5056, 40360), (6320, 32288), (8072, 25280), (10090, 20224), (10112, 20180), (12640, 16144)]