21860480

素因数分解:

$2^7\times 5^1\times {\mathrm{34157}}^1$

素因数の和:34176

約数の個数: 32

約数和(自身を含む): 52261740

約数和(自身を除く): 30401260

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 320, 640, 34157, 68314, 136628, 170785, 273256, 341570, 546512, 683140, 1093024, 1366280, 2186048, 2732560, 4372096, 5465120, 10930240, 21860480]

約数ペア:

[(1, 21860480), (2, 10930240), (4, 5465120), (5, 4372096), (8, 2732560), (10, 2186048), (16, 1366280), (20, 1093024), (32, 683140), (40, 546512), (64, 341570), (80, 273256), (128, 170785), (160, 136628), (320, 68314), (640, 34157)]