15683920

素因数分解:

$2^4\times 5^1\times 7^2\times {\mathrm{4001}}^1$

素因数の和:4028

約数の個数: 60

約数和(自身を含む): 42429204

約数和(自身を除く): 26745284

約数列:

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

約数ペア:

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