204844480

素因数分解:

$2^6\times 5^1\times {\mathrm{640139}}^1$

素因数の和:640156

約数の個数: 28

約数和(自身を含む): 487786680

約数和(自身を除く): 282942200

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 160, 320, 640139, 1280278, 2560556, 3200695, 5121112, 6401390, 10242224, 12802780, 20484448, 25605560, 40968896, 51211120, 102422240, 204844480]

約数ペア:

[(1, 204844480), (2, 102422240), (4, 51211120), (5, 40968896), (8, 25605560), (10, 20484448), (16, 12802780), (20, 10242224), (32, 6401390), (40, 5121112), (64, 3200695), (80, 2560556), (160, 1280278), (320, 640139)]