157703120

素因数分解:

$2^4\times 5^1\times {\mathrm{1971289}}^1$

素因数の和:1971302

約数の個数: 20

約数和(自身を含む): 366659940

約数和(自身を除く): 208956820

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 1971289, 3942578, 7885156, 9856445, 15770312, 19712890, 31540624, 39425780, 78851560, 157703120]

約数ペア:

[(1, 157703120), (2, 78851560), (4, 39425780), (5, 31540624), (8, 19712890), (10, 15770312), (16, 9856445), (20, 7885156), (40, 3942578), (80, 1971289)]