81449360

素因数分解:

$2^4\times 5^1\times {\mathrm{149}}^1\times {\mathrm{6833}}^1$

素因数の和:6995

約数の個数: 40

約数和(自身を含む): 190668600

約数和(自身を除く): 109219240

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 149, 298, 596, 745, 1192, 1490, 2384, 2980, 5960, 6833, 11920, 13666, 27332, 34165, 54664, 68330, 109328, 136660, 273320, 546640, 1018117, 2036234, 4072468, 5090585, 8144936, 10181170, 16289872, 20362340, 40724680, 81449360]

約数ペア:

[(1, 81449360), (2, 40724680), (4, 20362340), (5, 16289872), (8, 10181170), (10, 8144936), (16, 5090585), (20, 4072468), (40, 2036234), (80, 1018117), (149, 546640), (298, 273320), (596, 136660), (745, 109328), (1192, 68330), (1490, 54664), (2384, 34165), (2980, 27332), (5960, 13666), (6833, 11920)]