1378661680

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{67}}^2\times {\mathrm{349}}^1$

素因数の和:507

約数の個数: 120

約数和(自身を含む): 3559928400

約数和(自身を除く): 2181266720

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 40, 44, 55, 67, 80, 88, 110, 134, 176, 220, 268, 335, 349, 440, 536, 670, 698, 737, 880, 1072, 1340, 1396, 1474, 1745, 2680, 2792, 2948, 3490, 3685, 3839, 4489, 5360, 5584, 5896, 6980, 7370, 7678, 8978, 11792, 13960, 14740, 15356, 17956, 19195, 22445, 23383, 27920, 29480, 30712, 35912, 38390, 44890, 46766, 49379, 58960, 61424, 71824, 76780, 89780, 93532, 98758, 116915, 153560, 179560, 187064, 197516, 233830, 246895, 257213, 307120, 359120, 374128, 395032, 467660, 493790, 514426, 790064, 935320, 987580, 1028852, 1286065, 1566661, 1870640, 1975160, 2057704, 2572130, 3133322, 3950320, 4115408, 5144260, 6266644, 7833305, 10288520, 12533288, 15666610, 17233271, 20577040, 25066576, 31333220, 34466542, 62666440, 68933084, 86166355, 125332880, 137866168, 172332710, 275732336, 344665420, 689330840, 1378661680]

約数ペア:

[(1, 1378661680), (2, 689330840), (4, 344665420), (5, 275732336), (8, 172332710), (10, 137866168), (11, 125332880), (16, 86166355), (20, 68933084), (22, 62666440), (40, 34466542), (44, 31333220), (55, 25066576), (67, 20577040), (80, 17233271), (88, 15666610), (110, 12533288), (134, 10288520), (176, 7833305), (220, 6266644), (268, 5144260), (335, 4115408), (349, 3950320), (440, 3133322), (536, 2572130), (670, 2057704), (698, 1975160), (737, 1870640), (880, 1566661), (1072, 1286065), (1340, 1028852), (1396, 987580), (1474, 935320), (1745, 790064), (2680, 514426), (2792, 493790), (2948, 467660), (3490, 395032), (3685, 374128), (3839, 359120), (4489, 307120), (5360, 257213), (5584, 246895), (5896, 233830), (6980, 197516), (7370, 187064), (7678, 179560), (8978, 153560), (11792, 116915), (13960, 98758), (14740, 93532), (15356, 89780), (17956, 76780), (19195, 71824), (22445, 61424), (23383, 58960), (27920, 49379), (29480, 46766), (30712, 44890), (35912, 38390)]