209924480

素因数分解:

$2^7\times 5^1\times {\mathrm{328007}}^1$

素因数の和:328026

約数の個数: 32

約数和(自身を含む): 501852240

約数和(自身を除く): 291927760

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 320, 640, 328007, 656014, 1312028, 1640035, 2624056, 3280070, 5248112, 6560140, 10496224, 13120280, 20992448, 26240560, 41984896, 52481120, 104962240, 209924480]

約数ペア:

[(1, 209924480), (2, 104962240), (4, 52481120), (5, 41984896), (8, 26240560), (10, 20992448), (16, 13120280), (20, 10496224), (32, 6560140), (40, 5248112), (64, 3280070), (80, 2624056), (128, 1640035), (160, 1312028), (320, 656014), (640, 328007)]