77696720

素因数分解:

$2^4\times 5^1\times {\mathrm{71}}^1\times {\mathrm{13679}}^1$

素因数の和:13763

約数の個数: 40

約数和(自身を含む): 183202560

約数和(自身を除く): 105505840

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 71, 80, 142, 284, 355, 568, 710, 1136, 1420, 2840, 5680, 13679, 27358, 54716, 68395, 109432, 136790, 218864, 273580, 547160, 971209, 1094320, 1942418, 3884836, 4856045, 7769672, 9712090, 15539344, 19424180, 38848360, 77696720]

約数ペア:

[(1, 77696720), (2, 38848360), (4, 19424180), (5, 15539344), (8, 9712090), (10, 7769672), (16, 4856045), (20, 3884836), (40, 1942418), (71, 1094320), (80, 971209), (142, 547160), (284, 273580), (355, 218864), (568, 136790), (710, 109432), (1136, 68395), (1420, 54716), (2840, 27358), (5680, 13679)]