668574320

素因数分解:

$2^4\times 5^1\times {\mathrm{43}}^1\times {\mathrm{194353}}^1$

素因数の和:194409

約数の個数: 40

約数和(自身を含む): 1590593136

約数和(自身を除く): 922018816

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 43, 80, 86, 172, 215, 344, 430, 688, 860, 1720, 3440, 194353, 388706, 777412, 971765, 1554824, 1943530, 3109648, 3887060, 7774120, 8357179, 15548240, 16714358, 33428716, 41785895, 66857432, 83571790, 133714864, 167143580, 334287160, 668574320]

約数ペア:

[(1, 668574320), (2, 334287160), (4, 167143580), (5, 133714864), (8, 83571790), (10, 66857432), (16, 41785895), (20, 33428716), (40, 16714358), (43, 15548240), (80, 8357179), (86, 7774120), (172, 3887060), (215, 3109648), (344, 1943530), (430, 1554824), (688, 971765), (860, 777412), (1720, 388706), (3440, 194353)]