158522240

素因数分解:

$2^7\times 5^1\times {\mathrm{247691}}^1$

素因数の和:247710

約数の個数: 32

約数和(自身を含む): 378968760

約数和(自身を除く): 220446520

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 320, 640, 247691, 495382, 990764, 1238455, 1981528, 2476910, 3963056, 4953820, 7926112, 9907640, 15852224, 19815280, 31704448, 39630560, 79261120, 158522240]

約数ペア:

[(1, 158522240), (2, 79261120), (4, 39630560), (5, 31704448), (8, 19815280), (10, 15852224), (16, 9907640), (20, 7926112), (32, 4953820), (40, 3963056), (64, 2476910), (80, 1981528), (128, 1238455), (160, 990764), (320, 495382), (640, 247691)]