809489300

素因数分解:

$2^2\times 5^2\times {\mathrm{19}}^1\times {\mathrm{79}}^1\times {\mathrm{5393}}^1$

素因数の和:5505

約数の個数: 72

約数和(自身を含む): 1872796800

約数和(自身を除く): 1063307500

約数列:

[1, 2, 4, 5, 10, 19, 20, 25, 38, 50, 76, 79, 95, 100, 158, 190, 316, 380, 395, 475, 790, 950, 1501, 1580, 1900, 1975, 3002, 3950, 5393, 6004, 7505, 7900, 10786, 15010, 21572, 26965, 30020, 37525, 53930, 75050, 102467, 107860, 134825, 150100, 204934, 269650, 409868, 426047, 512335, 539300, 852094, 1024670, 1704188, 2049340, 2130235, 2561675, 4260470, 5123350, 8094893, 8520940, 10246700, 10651175, 16189786, 21302350, 32379572, 40474465, 42604700, 80948930, 161897860, 202372325, 404744650, 809489300]

約数ペア:

[(1, 809489300), (2, 404744650), (4, 202372325), (5, 161897860), (10, 80948930), (19, 42604700), (20, 40474465), (25, 32379572), (38, 21302350), (50, 16189786), (76, 10651175), (79, 10246700), (95, 8520940), (100, 8094893), (158, 5123350), (190, 4260470), (316, 2561675), (380, 2130235), (395, 2049340), (475, 1704188), (790, 1024670), (950, 852094), (1501, 539300), (1580, 512335), (1900, 426047), (1975, 409868), (3002, 269650), (3950, 204934), (5393, 150100), (6004, 134825), (7505, 107860), (7900, 102467), (10786, 75050), (15010, 53930), (21572, 37525), (26965, 30020)]