20931423360

素因数分解:

$2^7\times 3^1\times 5^1\times {\mathrm{197}}^1\times {\mathrm{55339}}^1$

素因数の和:55558

約数の個数: 128

約数和(自身を含む): 67058798400

約数和(自身を除く): 46127375040

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 32, 40, 48, 60, 64, 80, 96, 120, 128, 160, 192, 197, 240, 320, 384, 394, 480, 591, 640, 788, 960, 985, 1182, 1576, 1920, 1970, 2364, 2955, 3152, 3940, 4728, 5910, 6304, 7880, 9456, 11820, 12608, 15760, 18912, 23640, 25216, 31520, 37824, 47280, 55339, 63040, 75648, 94560, 110678, 126080, 166017, 189120, 221356, 276695, 332034, 378240, 442712, 553390, 664068, 830085, 885424, 1106780, 1328136, 1660170, 1770848, 2213560, 2656272, 3320340, 3541696, 4427120, 5312544, 6640680, 7083392, 8854240, 10625088, 10901783, 13281360, 17708480, 21250176, 21803566, 26562720, 32705349, 35416960, 43607132, 53125440, 54508915, 65410698, 87214264, 106250880, 109017830, 130821396, 163526745, 174428528, 218035660, 261642792, 327053490, 348857056, 436071320, 523285584, 654106980, 697714112, 872142640, 1046571168, 1308213960, 1395428224, 1744285280, 2093142336, 2616427920, 3488570560, 4186284672, 5232855840, 6977141120, 10465711680, 20931423360]

約数ペア:

[(1, 20931423360), (2, 10465711680), (3, 6977141120), (4, 5232855840), (5, 4186284672), (6, 3488570560), (8, 2616427920), (10, 2093142336), (12, 1744285280), (15, 1395428224), (16, 1308213960), (20, 1046571168), (24, 872142640), (30, 697714112), (32, 654106980), (40, 523285584), (48, 436071320), (60, 348857056), (64, 327053490), (80, 261642792), (96, 218035660), (120, 174428528), (128, 163526745), (160, 130821396), (192, 109017830), (197, 106250880), (240, 87214264), (320, 65410698), (384, 54508915), (394, 53125440), (480, 43607132), (591, 35416960), (640, 32705349), (788, 26562720), (960, 21803566), (985, 21250176), (1182, 17708480), (1576, 13281360), (1920, 10901783), (1970, 10625088), (2364, 8854240), (2955, 7083392), (3152, 6640680), (3940, 5312544), (4728, 4427120), (5910, 3541696), (6304, 3320340), (7880, 2656272), (9456, 2213560), (11820, 1770848), (12608, 1660170), (15760, 1328136), (18912, 1106780), (23640, 885424), (25216, 830085), (31520, 664068), (37824, 553390), (47280, 442712), (55339, 378240), (63040, 332034), (75648, 276695), (94560, 221356), (110678, 189120), (126080, 166017)]