205639360

素因数分解:

$2^6\times 5^1\times {\mathrm{642623}}^1$

素因数の和:642640

約数の個数: 28

約数和(自身を含む): 489679488

約数和(自身を除く): 284040128

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 160, 320, 642623, 1285246, 2570492, 3213115, 5140984, 6426230, 10281968, 12852460, 20563936, 25704920, 41127872, 51409840, 102819680, 205639360]

約数ペア:

[(1, 205639360), (2, 102819680), (4, 51409840), (5, 41127872), (8, 25704920), (10, 20563936), (16, 12852460), (20, 10281968), (32, 6426230), (40, 5140984), (64, 3213115), (80, 2570492), (160, 1285246), (320, 642623)]