20783965440

素因数分解:

$2^8\times 3^1\times 5^1\times 7^2\times {\mathrm{110459}}^1$

素因数の和:110497

約数の個数: 216

約数和(自身を含む): 77216842080

約数和(自身を除く): 56432876640

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 16, 20, 21, 24, 28, 30, 32, 35, 40, 42, 48, 49, 56, 60, 64, 70, 80, 84, 96, 98, 105, 112, 120, 128, 140, 147, 160, 168, 192, 196, 210, 224, 240, 245, 256, 280, 294, 320, 336, 384, 392, 420, 448, 480, 490, 560, 588, 640, 672, 735, 768, 784, 840, 896, 960, 980, 1120, 1176, 1280, 1344, 1470, 1568, 1680, 1792, 1920, 1960, 2240, 2352, 2688, 2940, 3136, 3360, 3840, 3920, 4480, 4704, 5376, 5880, 6272, 6720, 7840, 8960, 9408, 11760, 12544, 13440, 15680, 18816, 23520, 26880, 31360, 37632, 47040, 62720, 94080, 110459, 188160, 220918, 331377, 441836, 552295, 662754, 773213, 883672, 1104590, 1325508, 1546426, 1656885, 1767344, 2209180, 2319639, 2651016, 3092852, 3313770, 3534688, 3866065, 4418360, 4639278, 5302032, 5412491, 6185704, 6627540, 7069376, 7732130, 8836720, 9278556, 10604064, 10824982, 11598195, 12371408, 13255080, 14138752, 15464260, 16237473, 17673440, 18557112, 21208128, 21649964, 23196390, 24742816, 26510160, 27062455, 28277504, 30928520, 32474946, 35346880, 37114224, 42416256, 43299928, 46392780, 49485632, 53020320, 54124910, 61857040, 64949892, 70693760, 74228448, 81187365, 84832512, 86599856, 92785560, 98971264, 106040640, 108249820, 123714080, 129899784, 141387520, 148456896, 162374730, 173199712, 185571120, 197942528, 212081280, 216499640, 247428160, 259799568, 296913792, 324749460, 346399424, 371142240, 424162560, 432999280, 494856320, 519599136, 593827584, 649498920, 692798848, 742284480, 865998560, 989712640, 1039198272, 1298997840, 1385597696, 1484568960, 1731997120, 2078396544, 2597995680, 2969137920, 3463994240, 4156793088, 5195991360, 6927988480, 10391982720, 20783965440]

約数ペア:

[(1, 20783965440), (2, 10391982720), (3, 6927988480), (4, 5195991360), (5, 4156793088), (6, 3463994240), (7, 2969137920), (8, 2597995680), (10, 2078396544), (12, 1731997120), (14, 1484568960), (15, 1385597696), (16, 1298997840), (20, 1039198272), (21, 989712640), (24, 865998560), (28, 742284480), (30, 692798848), (32, 649498920), (35, 593827584), (40, 519599136), (42, 494856320), (48, 432999280), (49, 424162560), (56, 371142240), (60, 346399424), (64, 324749460), (70, 296913792), (80, 259799568), (84, 247428160), (96, 216499640), (98, 212081280), (105, 197942528), (112, 185571120), (120, 173199712), (128, 162374730), (140, 148456896), (147, 141387520), (160, 129899784), (168, 123714080), (192, 108249820), (196, 106040640), (210, 98971264), (224, 92785560), (240, 86599856), (245, 84832512), (256, 81187365), (280, 74228448), (294, 70693760), (320, 64949892), (336, 61857040), (384, 54124910), (392, 53020320), (420, 49485632), (448, 46392780), (480, 43299928), (490, 42416256), (560, 37114224), (588, 35346880), (640, 32474946), (672, 30928520), (735, 28277504), (768, 27062455), (784, 26510160), (840, 24742816), (896, 23196390), (960, 21649964), (980, 21208128), (1120, 18557112), (1176, 17673440), (1280, 16237473), (1344, 15464260), (1470, 14138752), (1568, 13255080), (1680, 12371408), (1792, 11598195), (1920, 10824982), (1960, 10604064), (2240, 9278556), (2352, 8836720), (2688, 7732130), (2940, 7069376), (3136, 6627540), (3360, 6185704), (3840, 5412491), (3920, 5302032), (4480, 4639278), (4704, 4418360), (5376, 3866065), (5880, 3534688), (6272, 3313770), (6720, 3092852), (7840, 2651016), (8960, 2319639), (9408, 2209180), (11760, 1767344), (12544, 1656885), (13440, 1546426), (15680, 1325508), (18816, 1104590), (23520, 883672), (26880, 773213), (31360, 662754), (37632, 552295), (47040, 441836), (62720, 331377), (94080, 220918), (110459, 188160)]