79977800

素因数分解:

$2^3\times 5^2\times 7^2\times {\mathrm{8161}}^1$

素因数の和:8191

約数の個数: 72

約数和(自身を含む): 216333810

約数和(自身を除く): 136356010

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 25, 28, 35, 40, 49, 50, 56, 70, 98, 100, 140, 175, 196, 200, 245, 280, 350, 392, 490, 700, 980, 1225, 1400, 1960, 2450, 4900, 8161, 9800, 16322, 32644, 40805, 57127, 65288, 81610, 114254, 163220, 204025, 228508, 285635, 326440, 399889, 408050, 457016, 571270, 799778, 816100, 1142540, 1428175, 1599556, 1632200, 1999445, 2285080, 2856350, 3199112, 3998890, 5712700, 7997780, 9997225, 11425400, 15995560, 19994450, 39988900, 79977800]

約数ペア:

[(1, 79977800), (2, 39988900), (4, 19994450), (5, 15995560), (7, 11425400), (8, 9997225), (10, 7997780), (14, 5712700), (20, 3998890), (25, 3199112), (28, 2856350), (35, 2285080), (40, 1999445), (49, 1632200), (50, 1599556), (56, 1428175), (70, 1142540), (98, 816100), (100, 799778), (140, 571270), (175, 457016), (196, 408050), (200, 399889), (245, 326440), (280, 285635), (350, 228508), (392, 204025), (490, 163220), (700, 114254), (980, 81610), (1225, 65288), (1400, 57127), (1960, 40805), (2450, 32644), (4900, 16322), (8161, 9800)]