64976000

素因数分解:

$2^7\times 5^3\times {\mathrm{31}}^1\times {\mathrm{131}}^1$

素因数の和:191

約数の個数: 128

約数和(自身を含む): 168030720

約数和(自身を除く): 103054720

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 31, 32, 40, 50, 62, 64, 80, 100, 124, 125, 128, 131, 155, 160, 200, 248, 250, 262, 310, 320, 400, 496, 500, 524, 620, 640, 655, 775, 800, 992, 1000, 1048, 1240, 1310, 1550, 1600, 1984, 2000, 2096, 2480, 2620, 3100, 3200, 3275, 3875, 3968, 4000, 4061, 4192, 4960, 5240, 6200, 6550, 7750, 8000, 8122, 8384, 9920, 10480, 12400, 13100, 15500, 16000, 16244, 16375, 16768, 19840, 20305, 20960, 24800, 26200, 31000, 32488, 32750, 40610, 41920, 49600, 52400, 62000, 64976, 65500, 81220, 83840, 99200, 101525, 104800, 124000, 129952, 131000, 162440, 203050, 209600, 248000, 259904, 262000, 324880, 406100, 419200, 496000, 507625, 519808, 524000, 649760, 812200, 1015250, 1048000, 1299520, 1624400, 2030500, 2096000, 2599040, 3248800, 4061000, 6497600, 8122000, 12995200, 16244000, 32488000, 64976000]

約数ペア:

[(1, 64976000), (2, 32488000), (4, 16244000), (5, 12995200), (8, 8122000), (10, 6497600), (16, 4061000), (20, 3248800), (25, 2599040), (31, 2096000), (32, 2030500), (40, 1624400), (50, 1299520), (62, 1048000), (64, 1015250), (80, 812200), (100, 649760), (124, 524000), (125, 519808), (128, 507625), (131, 496000), (155, 419200), (160, 406100), (200, 324880), (248, 262000), (250, 259904), (262, 248000), (310, 209600), (320, 203050), (400, 162440), (496, 131000), (500, 129952), (524, 124000), (620, 104800), (640, 101525), (655, 99200), (775, 83840), (800, 81220), (992, 65500), (1000, 64976), (1048, 62000), (1240, 52400), (1310, 49600), (1550, 41920), (1600, 40610), (1984, 32750), (2000, 32488), (2096, 31000), (2480, 26200), (2620, 24800), (3100, 20960), (3200, 20305), (3275, 19840), (3875, 16768), (3968, 16375), (4000, 16244), (4061, 16000), (4192, 15500), (4960, 13100), (5240, 12400), (6200, 10480), (6550, 9920), (7750, 8384), (8000, 8122)]