1893990400

素因数分解:

$2^{18}\times 5^2\times {\mathrm{17}}^2$

素因数の和:80

約数の個数: 171

約数和(自身を含む): 4989639379

約数和(自身を除く): 3095648979

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 25, 32, 34, 40, 50, 64, 68, 80, 85, 100, 128, 136, 160, 170, 200, 256, 272, 289, 320, 340, 400, 425, 512, 544, 578, 640, 680, 800, 850, 1024, 1088, 1156, 1280, 1360, 1445, 1600, 1700, 2048, 2176, 2312, 2560, 2720, 2890, 3200, 3400, 4096, 4352, 4624, 5120, 5440, 5780, 6400, 6800, 7225, 8192, 8704, 9248, 10240, 10880, 11560, 12800, 13600, 14450, 16384, 17408, 18496, 20480, 21760, 23120, 25600, 27200, 28900, 32768, 34816, 36992, 40960, 43520, 46240, 51200, 54400, 57800, 65536, 69632, 73984, 81920, 87040, 92480, 102400, 108800, 115600, 131072, 139264, 147968, 163840, 174080, 184960, 204800, 217600, 231200, 262144, 278528, 295936, 327680, 348160, 369920, 409600, 435200, 462400, 557056, 591872, 655360, 696320, 739840, 819200, 870400, 924800, 1114112, 1183744, 1310720, 1392640, 1479680, 1638400, 1740800, 1849600, 2228224, 2367488, 2785280, 2959360, 3276800, 3481600, 3699200, 4456448, 4734976, 5570560, 5918720, 6553600, 6963200, 7398400, 9469952, 11141120, 11837440, 13926400, 14796800, 18939904, 22282240, 23674880, 27852800, 29593600, 37879808, 47349760, 55705600, 59187200, 75759616, 94699520, 111411200, 118374400, 189399040, 236748800, 378798080, 473497600, 946995200, 1893990400]

約数ペア:

[(1, 1893990400), (2, 946995200), (4, 473497600), (5, 378798080), (8, 236748800), (10, 189399040), (16, 118374400), (17, 111411200), (20, 94699520), (25, 75759616), (32, 59187200), (34, 55705600), (40, 47349760), (50, 37879808), (64, 29593600), (68, 27852800), (80, 23674880), (85, 22282240), (100, 18939904), (128, 14796800), (136, 13926400), (160, 11837440), (170, 11141120), (200, 9469952), (256, 7398400), (272, 6963200), (289, 6553600), (320, 5918720), (340, 5570560), (400, 4734976), (425, 4456448), (512, 3699200), (544, 3481600), (578, 3276800), (640, 2959360), (680, 2785280), (800, 2367488), (850, 2228224), (1024, 1849600), (1088, 1740800), (1156, 1638400), (1280, 1479680), (1360, 1392640), (1445, 1310720), (1600, 1183744), (1700, 1114112), (2048, 924800), (2176, 870400), (2312, 819200), (2560, 739840), (2720, 696320), (2890, 655360), (3200, 591872), (3400, 557056), (4096, 462400), (4352, 435200), (4624, 409600), (5120, 369920), (5440, 348160), (5780, 327680), (6400, 295936), (6800, 278528), (7225, 262144), (8192, 231200), (8704, 217600), (9248, 204800), (10240, 184960), (10880, 174080), (11560, 163840), (12800, 147968), (13600, 139264), (14450, 131072), (16384, 115600), (17408, 108800), (18496, 102400), (20480, 92480), (21760, 87040), (23120, 81920), (25600, 73984), (27200, 69632), (28900, 65536), (32768, 57800), (34816, 54400), (36992, 51200), (40960, 46240)]