78986800

素因数分解:

$2^4\times 5^2\times {\mathrm{19}}^2\times {\mathrm{547}}^1$

素因数の和:603

約数の個数: 90

約数和(自身を含む): 200645268

約数和(自身を除く): 121658468

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 25, 38, 40, 50, 76, 80, 95, 100, 152, 190, 200, 304, 361, 380, 400, 475, 547, 722, 760, 950, 1094, 1444, 1520, 1805, 1900, 2188, 2735, 2888, 3610, 3800, 4376, 5470, 5776, 7220, 7600, 8752, 9025, 10393, 10940, 13675, 14440, 18050, 20786, 21880, 27350, 28880, 36100, 41572, 43760, 51965, 54700, 72200, 83144, 103930, 109400, 144400, 166288, 197467, 207860, 218800, 259825, 394934, 415720, 519650, 789868, 831440, 987335, 1039300, 1579736, 1974670, 2078600, 3159472, 3949340, 4157200, 4936675, 7898680, 9873350, 15797360, 19746700, 39493400, 78986800]

約数ペア:

[(1, 78986800), (2, 39493400), (4, 19746700), (5, 15797360), (8, 9873350), (10, 7898680), (16, 4936675), (19, 4157200), (20, 3949340), (25, 3159472), (38, 2078600), (40, 1974670), (50, 1579736), (76, 1039300), (80, 987335), (95, 831440), (100, 789868), (152, 519650), (190, 415720), (200, 394934), (304, 259825), (361, 218800), (380, 207860), (400, 197467), (475, 166288), (547, 144400), (722, 109400), (760, 103930), (950, 83144), (1094, 72200), (1444, 54700), (1520, 51965), (1805, 43760), (1900, 41572), (2188, 36100), (2735, 28880), (2888, 27350), (3610, 21880), (3800, 20786), (4376, 18050), (5470, 14440), (5776, 13675), (7220, 10940), (7600, 10393), (8752, 9025)]