8281780

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{53}}^1\times {\mathrm{601}}^1$

素因数の和:676

約数の個数: 48

約数和(自身を含む): 19114704

約数和(自身を除く): 10832924

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 53, 65, 106, 130, 212, 260, 265, 530, 601, 689, 1060, 1202, 1378, 2404, 2756, 3005, 3445, 6010, 6890, 7813, 12020, 13780, 15626, 31252, 31853, 39065, 63706, 78130, 127412, 156260, 159265, 318530, 414089, 637060, 828178, 1656356, 2070445, 4140890, 8281780]

約数ペア:

[(1, 8281780), (2, 4140890), (4, 2070445), (5, 1656356), (10, 828178), (13, 637060), (20, 414089), (26, 318530), (52, 159265), (53, 156260), (65, 127412), (106, 78130), (130, 63706), (212, 39065), (260, 31853), (265, 31252), (530, 15626), (601, 13780), (689, 12020), (1060, 7813), (1202, 6890), (1378, 6010), (2404, 3445), (2756, 3005)]