128356720

素因数分解:

$2^4\times 5^1\times {\mathrm{43}}^1\times {\mathrm{37313}}^1$

素因数の和:37369

約数の個数: 40

約数和(自身を含む): 305377776

約数和(自身を除く): 177021056

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 43, 80, 86, 172, 215, 344, 430, 688, 860, 1720, 3440, 37313, 74626, 149252, 186565, 298504, 373130, 597008, 746260, 1492520, 1604459, 2985040, 3208918, 6417836, 8022295, 12835672, 16044590, 25671344, 32089180, 64178360, 128356720]

約数ペア:

[(1, 128356720), (2, 64178360), (4, 32089180), (5, 25671344), (8, 16044590), (10, 12835672), (16, 8022295), (20, 6417836), (40, 3208918), (43, 2985040), (80, 1604459), (86, 1492520), (172, 746260), (215, 597008), (344, 373130), (430, 298504), (688, 186565), (860, 149252), (1720, 74626), (3440, 37313)]