31361960

素因数分解:

$2^3\times 5^1\times 7^2\times {\mathrm{16001}}^1$

素因数の和:16026

約数の個数: 48

約数和(自身を含む): 82090260

約数和(自身を除く): 50728300

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 49, 56, 70, 98, 140, 196, 245, 280, 392, 490, 980, 1960, 16001, 32002, 64004, 80005, 112007, 128008, 160010, 224014, 320020, 448028, 560035, 640040, 784049, 896056, 1120070, 1568098, 2240140, 3136196, 3920245, 4480280, 6272392, 7840490, 15680980, 31361960]

約数ペア:

[(1, 31361960), (2, 15680980), (4, 7840490), (5, 6272392), (7, 4480280), (8, 3920245), (10, 3136196), (14, 2240140), (20, 1568098), (28, 1120070), (35, 896056), (40, 784049), (49, 640040), (56, 560035), (70, 448028), (98, 320020), (140, 224014), (196, 160010), (245, 128008), (280, 112007), (392, 80005), (490, 64004), (980, 32002), (1960, 16001)]