20805004080

素因数分解:

$2^4\times 3^2\times 5^1\times 7^2\times {\mathrm{589711}}^1$

素因数の和:589744

約数の個数: 180

約数和(自身を含む): 81277646112

約数和(自身を除く): 60472642032

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 14, 15, 16, 18, 20, 21, 24, 28, 30, 35, 36, 40, 42, 45, 48, 49, 56, 60, 63, 70, 72, 80, 84, 90, 98, 105, 112, 120, 126, 140, 144, 147, 168, 180, 196, 210, 240, 245, 252, 280, 294, 315, 336, 360, 392, 420, 441, 490, 504, 560, 588, 630, 720, 735, 784, 840, 882, 980, 1008, 1176, 1260, 1470, 1680, 1764, 1960, 2205, 2352, 2520, 2940, 3528, 3920, 4410, 5040, 5880, 7056, 8820, 11760, 17640, 35280, 589711, 1179422, 1769133, 2358844, 2948555, 3538266, 4127977, 4717688, 5307399, 5897110, 7076532, 8255954, 8845665, 9435376, 10614798, 11794220, 12383931, 14153064, 16511908, 17691330, 20639885, 21229596, 23588440, 24767862, 26536995, 28306128, 28895839, 33023816, 35382660, 37151793, 41279770, 42459192, 47176880, 49535724, 53073990, 57791678, 61919655, 66047632, 70765320, 74303586, 82559540, 84918384, 86687517, 99071448, 106147980, 115583356, 123839310, 141530640, 144479195, 148607172, 165119080, 173375034, 185758965, 198142896, 212295960, 231166712, 247678620, 260062551, 288958390, 297214344, 330238160, 346750068, 371517930, 424591920, 433437585, 462333424, 495357240, 520125102, 577916780, 594428688, 693500136, 743035860, 866875170, 990714480, 1040250204, 1155833560, 1300312755, 1387000272, 1486071720, 1733750340, 2080500408, 2311667120, 2600625510, 2972143440, 3467500680, 4161000816, 5201251020, 6935001360, 10402502040, 20805004080]

約数ペア:

[(1, 20805004080), (2, 10402502040), (3, 6935001360), (4, 5201251020), (5, 4161000816), (6, 3467500680), (7, 2972143440), (8, 2600625510), (9, 2311667120), (10, 2080500408), (12, 1733750340), (14, 1486071720), (15, 1387000272), (16, 1300312755), (18, 1155833560), (20, 1040250204), (21, 990714480), (24, 866875170), (28, 743035860), (30, 693500136), (35, 594428688), (36, 577916780), (40, 520125102), (42, 495357240), (45, 462333424), (48, 433437585), (49, 424591920), (56, 371517930), (60, 346750068), (63, 330238160), (70, 297214344), (72, 288958390), (80, 260062551), (84, 247678620), (90, 231166712), (98, 212295960), (105, 198142896), (112, 185758965), (120, 173375034), (126, 165119080), (140, 148607172), (144, 144479195), (147, 141530640), (168, 123839310), (180, 115583356), (196, 106147980), (210, 99071448), (240, 86687517), (245, 84918384), (252, 82559540), (280, 74303586), (294, 70765320), (315, 66047632), (336, 61919655), (360, 57791678), (392, 53073990), (420, 49535724), (441, 47176880), (490, 42459192), (504, 41279770), (560, 37151793), (588, 35382660), (630, 33023816), (720, 28895839), (735, 28306128), (784, 26536995), (840, 24767862), (882, 23588440), (980, 21229596), (1008, 20639885), (1176, 17691330), (1260, 16511908), (1470, 14153064), (1680, 12383931), (1764, 11794220), (1960, 10614798), (2205, 9435376), (2352, 8845665), (2520, 8255954), (2940, 7076532), (3528, 5897110), (3920, 5307399), (4410, 4717688), (5040, 4127977), (5880, 3538266), (7056, 2948555), (8820, 2358844), (11760, 1769133), (17640, 1179422), (35280, 589711)]