80913280

素因数分解:

$2^7\times 5^1\times 7^1\times {\mathrm{18061}}^1$

素因数の和:18087

約数の個数: 64

約数和(自身を含む): 221078880

約数和(自身を除く): 140165600

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 56, 64, 70, 80, 112, 128, 140, 160, 224, 280, 320, 448, 560, 640, 896, 1120, 2240, 4480, 18061, 36122, 72244, 90305, 126427, 144488, 180610, 252854, 288976, 361220, 505708, 577952, 632135, 722440, 1011416, 1155904, 1264270, 1444880, 2022832, 2311808, 2528540, 2889760, 4045664, 5057080, 5779520, 8091328, 10114160, 11559040, 16182656, 20228320, 40456640, 80913280]

約数ペア:

[(1, 80913280), (2, 40456640), (4, 20228320), (5, 16182656), (7, 11559040), (8, 10114160), (10, 8091328), (14, 5779520), (16, 5057080), (20, 4045664), (28, 2889760), (32, 2528540), (35, 2311808), (40, 2022832), (56, 1444880), (64, 1264270), (70, 1155904), (80, 1011416), (112, 722440), (128, 632135), (140, 577952), (160, 505708), (224, 361220), (280, 288976), (320, 252854), (448, 180610), (560, 144488), (640, 126427), (896, 90305), (1120, 72244), (2240, 36122), (4480, 18061)]