78777680

素因数分解:

$2^4\times 5^1\times {\mathrm{107}}^1\times {\mathrm{9203}}^1$

素因数の和:9323

約数の個数: 40

約数和(自身を含む): 184889952

約数和(自身を除く): 106112272

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 107, 214, 428, 535, 856, 1070, 1712, 2140, 4280, 8560, 9203, 18406, 36812, 46015, 73624, 92030, 147248, 184060, 368120, 736240, 984721, 1969442, 3938884, 4923605, 7877768, 9847210, 15755536, 19694420, 39388840, 78777680]

約数ペア:

[(1, 78777680), (2, 39388840), (4, 19694420), (5, 15755536), (8, 9847210), (10, 7877768), (16, 4923605), (20, 3938884), (40, 1969442), (80, 984721), (107, 736240), (214, 368120), (428, 184060), (535, 147248), (856, 92030), (1070, 73624), (1712, 46015), (2140, 36812), (4280, 18406), (8560, 9203)]