20714240

素因数分解:

$2^8\times 5^1\times {\mathrm{16183}}^1$

素因数の和:16204

約数の個数: 36

約数和(自身を含む): 49620144

約数和(自身を除く): 28905904

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 256, 320, 640, 1280, 16183, 32366, 64732, 80915, 129464, 161830, 258928, 323660, 517856, 647320, 1035712, 1294640, 2071424, 2589280, 4142848, 5178560, 10357120, 20714240]

約数ペア:

[(1, 20714240), (2, 10357120), (4, 5178560), (5, 4142848), (8, 2589280), (10, 2071424), (16, 1294640), (20, 1035712), (32, 647320), (40, 517856), (64, 323660), (80, 258928), (128, 161830), (160, 129464), (256, 80915), (320, 64732), (640, 32366), (1280, 16183)]