78782080

素因数分解:

$2^7\times 5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{557}}^1$

素因数の和:606

約数の個数: 128

約数和(自身を含む): 215142480

約数和(自身を除く): 136360400

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 17, 20, 26, 32, 34, 40, 52, 64, 65, 68, 80, 85, 104, 128, 130, 136, 160, 170, 208, 221, 260, 272, 320, 340, 416, 442, 520, 544, 557, 640, 680, 832, 884, 1040, 1088, 1105, 1114, 1360, 1664, 1768, 2080, 2176, 2210, 2228, 2720, 2785, 3536, 4160, 4420, 4456, 5440, 5570, 7072, 7241, 8320, 8840, 8912, 9469, 10880, 11140, 14144, 14482, 17680, 17824, 18938, 22280, 28288, 28964, 35360, 35648, 36205, 37876, 44560, 47345, 57928, 70720, 71296, 72410, 75752, 89120, 94690, 115856, 123097, 141440, 144820, 151504, 178240, 189380, 231712, 246194, 289640, 303008, 356480, 378760, 463424, 492388, 579280, 606016, 615485, 757520, 926848, 984776, 1158560, 1212032, 1230970, 1515040, 1969552, 2317120, 2461940, 3030080, 3939104, 4634240, 4923880, 6060160, 7878208, 9847760, 15756416, 19695520, 39391040, 78782080]

約数ペア:

[(1, 78782080), (2, 39391040), (4, 19695520), (5, 15756416), (8, 9847760), (10, 7878208), (13, 6060160), (16, 4923880), (17, 4634240), (20, 3939104), (26, 3030080), (32, 2461940), (34, 2317120), (40, 1969552), (52, 1515040), (64, 1230970), (65, 1212032), (68, 1158560), (80, 984776), (85, 926848), (104, 757520), (128, 615485), (130, 606016), (136, 579280), (160, 492388), (170, 463424), (208, 378760), (221, 356480), (260, 303008), (272, 289640), (320, 246194), (340, 231712), (416, 189380), (442, 178240), (520, 151504), (544, 144820), (557, 141440), (640, 123097), (680, 115856), (832, 94690), (884, 89120), (1040, 75752), (1088, 72410), (1105, 71296), (1114, 70720), (1360, 57928), (1664, 47345), (1768, 44560), (2080, 37876), (2176, 36205), (2210, 35648), (2228, 35360), (2720, 28964), (2785, 28288), (3536, 22280), (4160, 18938), (4420, 17824), (4456, 17680), (5440, 14482), (5570, 14144), (7072, 11140), (7241, 10880), (8320, 9469), (8840, 8912)]