51980800

素因数分解:

$2^9\times 5^2\times {\mathrm{31}}^1\times {\mathrm{131}}^1$

素因数の和:190

約数の個数: 120

約数和(自身を含む): 133955712

約数和(自身を除く): 81974912

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 31, 32, 40, 50, 62, 64, 80, 100, 124, 128, 131, 155, 160, 200, 248, 256, 262, 310, 320, 400, 496, 512, 524, 620, 640, 655, 775, 800, 992, 1048, 1240, 1280, 1310, 1550, 1600, 1984, 2096, 2480, 2560, 2620, 3100, 3200, 3275, 3968, 4061, 4192, 4960, 5240, 6200, 6400, 6550, 7936, 8122, 8384, 9920, 10480, 12400, 12800, 13100, 15872, 16244, 16768, 19840, 20305, 20960, 24800, 26200, 32488, 33536, 39680, 40610, 41920, 49600, 52400, 64976, 67072, 79360, 81220, 83840, 99200, 101525, 104800, 129952, 162440, 167680, 198400, 203050, 209600, 259904, 324880, 335360, 396800, 406100, 419200, 519808, 649760, 812200, 838400, 1039616, 1299520, 1624400, 1676800, 2079232, 2599040, 3248800, 5198080, 6497600, 10396160, 12995200, 25990400, 51980800]

約数ペア:

[(1, 51980800), (2, 25990400), (4, 12995200), (5, 10396160), (8, 6497600), (10, 5198080), (16, 3248800), (20, 2599040), (25, 2079232), (31, 1676800), (32, 1624400), (40, 1299520), (50, 1039616), (62, 838400), (64, 812200), (80, 649760), (100, 519808), (124, 419200), (128, 406100), (131, 396800), (155, 335360), (160, 324880), (200, 259904), (248, 209600), (256, 203050), (262, 198400), (310, 167680), (320, 162440), (400, 129952), (496, 104800), (512, 101525), (524, 99200), (620, 83840), (640, 81220), (655, 79360), (775, 67072), (800, 64976), (992, 52400), (1048, 49600), (1240, 41920), (1280, 40610), (1310, 39680), (1550, 33536), (1600, 32488), (1984, 26200), (2096, 24800), (2480, 20960), (2560, 20305), (2620, 19840), (3100, 16768), (3200, 16244), (3275, 15872), (3968, 13100), (4061, 12800), (4192, 12400), (4960, 10480), (5240, 9920), (6200, 8384), (6400, 8122), (6550, 7936)]