31367840

素因数分解:

$2^5\times 5^1\times 7^2\times {\mathrm{4001}}^1$

素因数の和:4030

約数の個数: 72

約数和(自身を含む): 86227092

約数和(自身を除く): 54859252

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 49, 56, 70, 80, 98, 112, 140, 160, 196, 224, 245, 280, 392, 490, 560, 784, 980, 1120, 1568, 1960, 3920, 4001, 7840, 8002, 16004, 20005, 28007, 32008, 40010, 56014, 64016, 80020, 112028, 128032, 140035, 160040, 196049, 224056, 280070, 320080, 392098, 448112, 560140, 640160, 784196, 896224, 980245, 1120280, 1568392, 1960490, 2240560, 3136784, 3920980, 4481120, 6273568, 7841960, 15683920, 31367840]

約数ペア:

[(1, 31367840), (2, 15683920), (4, 7841960), (5, 6273568), (7, 4481120), (8, 3920980), (10, 3136784), (14, 2240560), (16, 1960490), (20, 1568392), (28, 1120280), (32, 980245), (35, 896224), (40, 784196), (49, 640160), (56, 560140), (70, 448112), (80, 392098), (98, 320080), (112, 280070), (140, 224056), (160, 196049), (196, 160040), (224, 140035), (245, 128032), (280, 112028), (392, 80020), (490, 64016), (560, 56014), (784, 40010), (980, 32008), (1120, 28007), (1568, 20005), (1960, 16004), (3920, 8002), (4001, 7840)]