81763640

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{43}}^1\times {\mathrm{6791}}^1$

素因数の和:6852

約数の個数: 64

約数和(自身を含む): 215170560

約数和(自身を除く): 133406920

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 43, 56, 70, 86, 140, 172, 215, 280, 301, 344, 430, 602, 860, 1204, 1505, 1720, 2408, 3010, 6020, 6791, 12040, 13582, 27164, 33955, 47537, 54328, 67910, 95074, 135820, 190148, 237685, 271640, 292013, 380296, 475370, 584026, 950740, 1168052, 1460065, 1901480, 2044091, 2336104, 2920130, 4088182, 5840260, 8176364, 10220455, 11680520, 16352728, 20440910, 40881820, 81763640]

約数ペア:

[(1, 81763640), (2, 40881820), (4, 20440910), (5, 16352728), (7, 11680520), (8, 10220455), (10, 8176364), (14, 5840260), (20, 4088182), (28, 2920130), (35, 2336104), (40, 2044091), (43, 1901480), (56, 1460065), (70, 1168052), (86, 950740), (140, 584026), (172, 475370), (215, 380296), (280, 292013), (301, 271640), (344, 237685), (430, 190148), (602, 135820), (860, 95074), (1204, 67910), (1505, 54328), (1720, 47537), (2408, 33955), (3010, 27164), (6020, 13582), (6791, 12040)]