78910360

素因数分解:

$2^3\times 5^1\times {\mathrm{103}}^1\times {\mathrm{107}}^1\times {\mathrm{179}}^1$

素因数の和:400

約数の個数: 64

約数和(自身を含む): 181958400

約数和(自身を除く): 103048040

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 103, 107, 179, 206, 214, 358, 412, 428, 515, 535, 716, 824, 856, 895, 1030, 1070, 1432, 1790, 2060, 2140, 3580, 4120, 4280, 7160, 11021, 18437, 19153, 22042, 36874, 38306, 44084, 55105, 73748, 76612, 88168, 92185, 95765, 110210, 147496, 153224, 184370, 191530, 220420, 368740, 383060, 440840, 737480, 766120, 1972759, 3945518, 7891036, 9863795, 15782072, 19727590, 39455180, 78910360]

約数ペア:

[(1, 78910360), (2, 39455180), (4, 19727590), (5, 15782072), (8, 9863795), (10, 7891036), (20, 3945518), (40, 1972759), (103, 766120), (107, 737480), (179, 440840), (206, 383060), (214, 368740), (358, 220420), (412, 191530), (428, 184370), (515, 153224), (535, 147496), (716, 110210), (824, 95765), (856, 92185), (895, 88168), (1030, 76612), (1070, 73748), (1432, 55105), (1790, 44084), (2060, 38306), (2140, 36874), (3580, 22042), (4120, 19153), (4280, 18437), (7160, 11021)]