20161250920

素因数分解:

$2^3\times 5^1\times {\mathrm{193}}^1\times {\mathrm{619}}^1\times {\mathrm{4219}}^1$

素因数の和:5042

約数の個数: 64

約数和(自身を含む): 45682344000

約数和(自身を除く): 25521093080

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 193, 386, 619, 772, 965, 1238, 1544, 1930, 2476, 3095, 3860, 4219, 4952, 6190, 7720, 8438, 12380, 16876, 21095, 24760, 33752, 42190, 84380, 119467, 168760, 238934, 477868, 597335, 814267, 955736, 1194670, 1628534, 2389340, 2611561, 3257068, 4071335, 4778680, 5223122, 6514136, 8142670, 10446244, 13057805, 16285340, 20892488, 26115610, 32570680, 52231220, 104462440, 504031273, 1008062546, 2016125092, 2520156365, 4032250184, 5040312730, 10080625460, 20161250920]

約数ペア:

[(1, 20161250920), (2, 10080625460), (4, 5040312730), (5, 4032250184), (8, 2520156365), (10, 2016125092), (20, 1008062546), (40, 504031273), (193, 104462440), (386, 52231220), (619, 32570680), (772, 26115610), (965, 20892488), (1238, 16285340), (1544, 13057805), (1930, 10446244), (2476, 8142670), (3095, 6514136), (3860, 5223122), (4219, 4778680), (4952, 4071335), (6190, 3257068), (7720, 2611561), (8438, 2389340), (12380, 1628534), (16876, 1194670), (21095, 955736), (24760, 814267), (33752, 597335), (42190, 477868), (84380, 238934), (119467, 168760)]