19889734400

素因数分解:

$2^8\times 5^2\times {\mathrm{601}}^1\times {\mathrm{5171}}^1$

素因数の和:5798

約数の個数: 108

約数和(自身を含む): 49321650504

約数和(自身を除く): 29431916104

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 32, 40, 50, 64, 80, 100, 128, 160, 200, 256, 320, 400, 601, 640, 800, 1202, 1280, 1600, 2404, 3005, 3200, 4808, 5171, 6010, 6400, 9616, 10342, 12020, 15025, 19232, 20684, 24040, 25855, 30050, 38464, 41368, 48080, 51710, 60100, 76928, 82736, 96160, 103420, 120200, 129275, 153856, 165472, 192320, 206840, 240400, 258550, 330944, 384640, 413680, 480800, 517100, 661888, 769280, 827360, 961600, 1034200, 1323776, 1654720, 1923200, 2068400, 3107771, 3309440, 3846400, 4136800, 6215542, 6618880, 8273600, 12431084, 15538855, 16547200, 24862168, 31077710, 33094400, 49724336, 62155420, 77694275, 99448672, 124310840, 155388550, 198897344, 248621680, 310777100, 397794688, 497243360, 621554200, 795589376, 994486720, 1243108400, 1988973440, 2486216800, 3977946880, 4972433600, 9944867200, 19889734400]

約数ペア:

[(1, 19889734400), (2, 9944867200), (4, 4972433600), (5, 3977946880), (8, 2486216800), (10, 1988973440), (16, 1243108400), (20, 994486720), (25, 795589376), (32, 621554200), (40, 497243360), (50, 397794688), (64, 310777100), (80, 248621680), (100, 198897344), (128, 155388550), (160, 124310840), (200, 99448672), (256, 77694275), (320, 62155420), (400, 49724336), (601, 33094400), (640, 31077710), (800, 24862168), (1202, 16547200), (1280, 15538855), (1600, 12431084), (2404, 8273600), (3005, 6618880), (3200, 6215542), (4808, 4136800), (5171, 3846400), (6010, 3309440), (6400, 3107771), (9616, 2068400), (10342, 1923200), (12020, 1654720), (15025, 1323776), (19232, 1034200), (20684, 961600), (24040, 827360), (25855, 769280), (30050, 661888), (38464, 517100), (41368, 480800), (48080, 413680), (51710, 384640), (60100, 330944), (76928, 258550), (82736, 240400), (96160, 206840), (103420, 192320), (120200, 165472), (129275, 153856)]