28734320

素因数分解:

$2^4\times 5^1\times {\mathrm{43}}^1\times {\mathrm{8353}}^1$

素因数の和:8409

約数の個数: 40

約数和(自身を含む): 68369136

約数和(自身を除く): 39634816

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 43, 80, 86, 172, 215, 344, 430, 688, 860, 1720, 3440, 8353, 16706, 33412, 41765, 66824, 83530, 133648, 167060, 334120, 359179, 668240, 718358, 1436716, 1795895, 2873432, 3591790, 5746864, 7183580, 14367160, 28734320]

約数ペア:

[(1, 28734320), (2, 14367160), (4, 7183580), (5, 5746864), (8, 3591790), (10, 2873432), (16, 1795895), (20, 1436716), (40, 718358), (43, 668240), (80, 359179), (86, 334120), (172, 167060), (215, 133648), (344, 83530), (430, 66824), (688, 41765), (860, 33412), (1720, 16706), (3440, 8353)]