78839408

素因数分解:

$2^4\times {\mathrm{53}}^1\times {\mathrm{239}}^1\times {\mathrm{389}}^1$

素因数の和:689

約数の個数: 40

約数和(自身を含む): 156686400

約数和(自身を除く): 77846992

約数列:

[1, 2, 4, 8, 16, 53, 106, 212, 239, 389, 424, 478, 778, 848, 956, 1556, 1912, 3112, 3824, 6224, 12667, 20617, 25334, 41234, 50668, 82468, 92971, 101336, 164936, 185942, 202672, 329872, 371884, 743768, 1487536, 4927463, 9854926, 19709852, 39419704, 78839408]

約数ペア:

[(1, 78839408), (2, 39419704), (4, 19709852), (8, 9854926), (16, 4927463), (53, 1487536), (106, 743768), (212, 371884), (239, 329872), (389, 202672), (424, 185942), (478, 164936), (778, 101336), (848, 92971), (956, 82468), (1556, 50668), (1912, 41234), (3112, 25334), (3824, 20617), (6224, 12667)]