79186840

素因数分解:

$2^3\times 5^1\times {\mathrm{257}}^1\times {\mathrm{7703}}^1$

素因数の和:7971

約数の個数: 32

約数和(自身を含む): 178886880

約数和(自身を除く): 99700040

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 257, 514, 1028, 1285, 2056, 2570, 5140, 7703, 10280, 15406, 30812, 38515, 61624, 77030, 154060, 308120, 1979671, 3959342, 7918684, 9898355, 15837368, 19796710, 39593420, 79186840]

約数ペア:

[(1, 79186840), (2, 39593420), (4, 19796710), (5, 15837368), (8, 9898355), (10, 7918684), (20, 3959342), (40, 1979671), (257, 308120), (514, 154060), (1028, 77030), (1285, 61624), (2056, 38515), (2570, 30812), (5140, 15406), (7703, 10280)]