80071040

素因数分解:

$2^7\times 5^1\times 7^1\times {\mathrm{61}}^1\times {\mathrm{293}}^1$

素因数の和:380

約数の個数: 128

約数和(自身を含む): 223110720

約数和(自身を除く): 143039680

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 56, 61, 64, 70, 80, 112, 122, 128, 140, 160, 224, 244, 280, 293, 305, 320, 427, 448, 488, 560, 586, 610, 640, 854, 896, 976, 1120, 1172, 1220, 1465, 1708, 1952, 2051, 2135, 2240, 2344, 2440, 2930, 3416, 3904, 4102, 4270, 4480, 4688, 4880, 5860, 6832, 7808, 8204, 8540, 9376, 9760, 10255, 11720, 13664, 16408, 17080, 17873, 18752, 19520, 20510, 23440, 27328, 32816, 34160, 35746, 37504, 39040, 41020, 46880, 54656, 65632, 68320, 71492, 82040, 89365, 93760, 125111, 131264, 136640, 142984, 164080, 178730, 187520, 250222, 262528, 273280, 285968, 328160, 357460, 500444, 571936, 625555, 656320, 714920, 1000888, 1143872, 1251110, 1312640, 1429840, 2001776, 2287744, 2502220, 2859680, 4003552, 5004440, 5719360, 8007104, 10008880, 11438720, 16014208, 20017760, 40035520, 80071040]

約数ペア:

[(1, 80071040), (2, 40035520), (4, 20017760), (5, 16014208), (7, 11438720), (8, 10008880), (10, 8007104), (14, 5719360), (16, 5004440), (20, 4003552), (28, 2859680), (32, 2502220), (35, 2287744), (40, 2001776), (56, 1429840), (61, 1312640), (64, 1251110), (70, 1143872), (80, 1000888), (112, 714920), (122, 656320), (128, 625555), (140, 571936), (160, 500444), (224, 357460), (244, 328160), (280, 285968), (293, 273280), (305, 262528), (320, 250222), (427, 187520), (448, 178730), (488, 164080), (560, 142984), (586, 136640), (610, 131264), (640, 125111), (854, 93760), (896, 89365), (976, 82040), (1120, 71492), (1172, 68320), (1220, 65632), (1465, 54656), (1708, 46880), (1952, 41020), (2051, 39040), (2135, 37504), (2240, 35746), (2344, 34160), (2440, 32816), (2930, 27328), (3416, 23440), (3904, 20510), (4102, 19520), (4270, 18752), (4480, 17873), (4688, 17080), (4880, 16408), (5860, 13664), (6832, 11720), (7808, 10255), (8204, 9760), (8540, 9376)]