399777840

素因数分解:

$2^4\times 3^2\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{7211}}^1$

素因数の和:7248

約数の個数: 240

約数和(自身を含む): 1674107136

約数和(自身を除く): 1274329296

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 14, 15, 16, 18, 20, 21, 22, 24, 28, 30, 33, 35, 36, 40, 42, 44, 45, 48, 55, 56, 60, 63, 66, 70, 72, 77, 80, 84, 88, 90, 99, 105, 110, 112, 120, 126, 132, 140, 144, 154, 165, 168, 176, 180, 198, 210, 220, 231, 240, 252, 264, 280, 308, 315, 330, 336, 360, 385, 396, 420, 440, 462, 495, 504, 528, 560, 616, 630, 660, 693, 720, 770, 792, 840, 880, 924, 990, 1008, 1155, 1232, 1260, 1320, 1386, 1540, 1584, 1680, 1848, 1980, 2310, 2520, 2640, 2772, 3080, 3465, 3696, 3960, 4620, 5040, 5544, 6160, 6930, 7211, 7920, 9240, 11088, 13860, 14422, 18480, 21633, 27720, 28844, 36055, 43266, 50477, 55440, 57688, 64899, 72110, 79321, 86532, 100954, 108165, 115376, 129798, 144220, 151431, 158642, 173064, 201908, 216330, 237963, 252385, 259596, 288440, 302862, 317284, 324495, 346128, 396605, 403816, 432660, 454293, 475926, 504770, 519192, 555247, 576880, 605724, 634568, 648990, 713889, 757155, 793210, 807632, 865320, 908586, 951852, 1009540, 1038384, 1110494, 1189815, 1211448, 1269136, 1297980, 1427778, 1514310, 1586420, 1665741, 1730640, 1817172, 1903704, 2019080, 2220988, 2271465, 2379630, 2422896, 2595960, 2776235, 2855556, 3028620, 3172840, 3331482, 3569445, 3634344, 3807408, 4038160, 4441976, 4542930, 4759260, 4997223, 5191920, 5552470, 5711112, 6057240, 6345680, 6662964, 7138890, 7268688, 8328705, 8883952, 9085860, 9518520, 9994446, 11104940, 11422224, 12114480, 13325928, 14277780, 16657410, 18171720, 19037040, 19988892, 22209880, 24986115, 26651856, 28555560, 33314820, 36343440, 39977784, 44419760, 49972230, 57111120, 66629640, 79955568, 99944460, 133259280, 199888920, 399777840]

約数ペア:

[(1, 399777840), (2, 199888920), (3, 133259280), (4, 99944460), (5, 79955568), (6, 66629640), (7, 57111120), (8, 49972230), (9, 44419760), (10, 39977784), (11, 36343440), (12, 33314820), (14, 28555560), (15, 26651856), (16, 24986115), (18, 22209880), (20, 19988892), (21, 19037040), (22, 18171720), (24, 16657410), (28, 14277780), (30, 13325928), (33, 12114480), (35, 11422224), (36, 11104940), (40, 9994446), (42, 9518520), (44, 9085860), (45, 8883952), (48, 8328705), (55, 7268688), (56, 7138890), (60, 6662964), (63, 6345680), (66, 6057240), (70, 5711112), (72, 5552470), (77, 5191920), (80, 4997223), (84, 4759260), (88, 4542930), (90, 4441976), (99, 4038160), (105, 3807408), (110, 3634344), (112, 3569445), (120, 3331482), (126, 3172840), (132, 3028620), (140, 2855556), (144, 2776235), (154, 2595960), (165, 2422896), (168, 2379630), (176, 2271465), (180, 2220988), (198, 2019080), (210, 1903704), (220, 1817172), (231, 1730640), (240, 1665741), (252, 1586420), (264, 1514310), (280, 1427778), (308, 1297980), (315, 1269136), (330, 1211448), (336, 1189815), (360, 1110494), (385, 1038384), (396, 1009540), (420, 951852), (440, 908586), (462, 865320), (495, 807632), (504, 793210), (528, 757155), (560, 713889), (616, 648990), (630, 634568), (660, 605724), (693, 576880), (720, 555247), (770, 519192), (792, 504770), (840, 475926), (880, 454293), (924, 432660), (990, 403816), (1008, 396605), (1155, 346128), (1232, 324495), (1260, 317284), (1320, 302862), (1386, 288440), (1540, 259596), (1584, 252385), (1680, 237963), (1848, 216330), (1980, 201908), (2310, 173064), (2520, 158642), (2640, 151431), (2772, 144220), (3080, 129798), (3465, 115376), (3696, 108165), (3960, 100954), (4620, 86532), (5040, 79321), (5544, 72110), (6160, 64899), (6930, 57688), (7211, 55440), (7920, 50477), (9240, 43266), (11088, 36055), (13860, 28844), (14422, 27720), (18480, 21633)]