4287640

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{15313}}^1$

素因数の和:15331

約数の個数: 32

約数和(自身を含む): 11026080

約数和(自身を除く): 6738440

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 15313, 30626, 61252, 76565, 107191, 122504, 153130, 214382, 306260, 428764, 535955, 612520, 857528, 1071910, 2143820, 4287640]

約数ペア:

[(1, 4287640), (2, 2143820), (4, 1071910), (5, 857528), (7, 612520), (8, 535955), (10, 428764), (14, 306260), (20, 214382), (28, 153130), (35, 122504), (40, 107191), (56, 76565), (70, 61252), (140, 30626), (280, 15313)]