21181651840

素因数分解:

$2^7\times 5^1\times {\mathrm{17}}^1\times {\mathrm{151}}^1\times {\mathrm{12893}}^1$

素因数の和:13080

約数の個数: 128

約数和(自身を含む): 53975315520

約数和(自身を除く): 32793663680

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 32, 34, 40, 64, 68, 80, 85, 128, 136, 151, 160, 170, 272, 302, 320, 340, 544, 604, 640, 680, 755, 1088, 1208, 1360, 1510, 2176, 2416, 2567, 2720, 3020, 4832, 5134, 5440, 6040, 9664, 10268, 10880, 12080, 12835, 12893, 19328, 20536, 24160, 25670, 25786, 41072, 48320, 51340, 51572, 64465, 82144, 96640, 102680, 103144, 128930, 164288, 205360, 206288, 219181, 257860, 328576, 410720, 412576, 438362, 515720, 821440, 825152, 876724, 1031440, 1095905, 1642880, 1650304, 1753448, 1946843, 2062880, 2191810, 3506896, 3893686, 4125760, 4383620, 7013792, 7787372, 8251520, 8767240, 9734215, 14027584, 15574744, 17534480, 19468430, 28055168, 31149488, 33096331, 35068960, 38936860, 62298976, 66192662, 70137920, 77873720, 124597952, 132385324, 140275840, 155747440, 165481655, 249195904, 264770648, 311494880, 330963310, 529541296, 622989760, 661926620, 1059082592, 1245979520, 1323853240, 2118165184, 2647706480, 4236330368, 5295412960, 10590825920, 21181651840]

約数ペア:

[(1, 21181651840), (2, 10590825920), (4, 5295412960), (5, 4236330368), (8, 2647706480), (10, 2118165184), (16, 1323853240), (17, 1245979520), (20, 1059082592), (32, 661926620), (34, 622989760), (40, 529541296), (64, 330963310), (68, 311494880), (80, 264770648), (85, 249195904), (128, 165481655), (136, 155747440), (151, 140275840), (160, 132385324), (170, 124597952), (272, 77873720), (302, 70137920), (320, 66192662), (340, 62298976), (544, 38936860), (604, 35068960), (640, 33096331), (680, 31149488), (755, 28055168), (1088, 19468430), (1208, 17534480), (1360, 15574744), (1510, 14027584), (2176, 9734215), (2416, 8767240), (2567, 8251520), (2720, 7787372), (3020, 7013792), (4832, 4383620), (5134, 4125760), (5440, 3893686), (6040, 3506896), (9664, 2191810), (10268, 2062880), (10880, 1946843), (12080, 1753448), (12835, 1650304), (12893, 1642880), (19328, 1095905), (20536, 1031440), (24160, 876724), (25670, 825152), (25786, 821440), (41072, 515720), (48320, 438362), (51340, 412576), (51572, 410720), (64465, 328576), (82144, 257860), (96640, 219181), (102680, 206288), (103144, 205360), (128930, 164288)]