16971520

素因数分解:

$2^8\times 5^1\times {\mathrm{13259}}^1$

素因数の和:13280

約数の個数: 36

約数和(自身を含む): 40655160

約数和(自身を除く): 23683640

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 256, 320, 640, 1280, 13259, 26518, 53036, 66295, 106072, 132590, 212144, 265180, 424288, 530360, 848576, 1060720, 1697152, 2121440, 3394304, 4242880, 8485760, 16971520]

約数ペア:

[(1, 16971520), (2, 8485760), (4, 4242880), (5, 3394304), (8, 2121440), (10, 1697152), (16, 1060720), (20, 848576), (32, 530360), (40, 424288), (64, 265180), (80, 212144), (128, 132590), (160, 106072), (256, 66295), (320, 53036), (640, 26518), (1280, 13259)]