129373240

素因数分解:

$2^3\times 5^1\times {\mathrm{43}}^1\times {\mathrm{75217}}^1$

素因数の和:75271

約数の個数: 32

約数和(自身を含む): 297863280

約数和(自身を除く): 168490040

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 43, 86, 172, 215, 344, 430, 860, 1720, 75217, 150434, 300868, 376085, 601736, 752170, 1504340, 3008680, 3234331, 6468662, 12937324, 16171655, 25874648, 32343310, 64686620, 129373240]

約数ペア:

[(1, 129373240), (2, 64686620), (4, 32343310), (5, 25874648), (8, 16171655), (10, 12937324), (20, 6468662), (40, 3234331), (43, 3008680), (86, 1504340), (172, 752170), (215, 601736), (344, 376085), (430, 300868), (860, 150434), (1720, 75217)]