81229680

素因数分解:

$2^4\times 3^2\times 5^1\times 7^1\times {\mathrm{71}}^1\times {\mathrm{227}}^1$

素因数の和:324

約数の個数: 240

約数和(自身を含む): 317551104

約数和(自身を除く): 236321424

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, 56, 60, 63, 70, 71, 72, 80, 84, 90, 105, 112, 120, 126, 140, 142, 144, 168, 180, 210, 213, 227, 240, 252, 280, 284, 315, 336, 355, 360, 420, 426, 454, 497, 504, 560, 568, 630, 639, 681, 710, 720, 840, 852, 908, 994, 1008, 1065, 1135, 1136, 1260, 1278, 1362, 1420, 1491, 1589, 1680, 1704, 1816, 1988, 2043, 2130, 2270, 2485, 2520, 2556, 2724, 2840, 2982, 3178, 3195, 3405, 3408, 3632, 3976, 4086, 4260, 4473, 4540, 4767, 4970, 5040, 5112, 5448, 5680, 5964, 6356, 6390, 6810, 7455, 7945, 7952, 8172, 8520, 8946, 9080, 9534, 9940, 10215, 10224, 10896, 11928, 12712, 12780, 13620, 14301, 14910, 15890, 16117, 16344, 17040, 17892, 18160, 19068, 19880, 20430, 22365, 23835, 23856, 25424, 25560, 27240, 28602, 29820, 31780, 32234, 32688, 35784, 38136, 39760, 40860, 44730, 47670, 48351, 51120, 54480, 57204, 59640, 63560, 64468, 71505, 71568, 76272, 80585, 81720, 89460, 95340, 96702, 112819, 114408, 119280, 127120, 128936, 143010, 145053, 161170, 163440, 178920, 190680, 193404, 225638, 228816, 241755, 257872, 286020, 290106, 322340, 338457, 357840, 381360, 386808, 451276, 483510, 564095, 572040, 580212, 644680, 676914, 725265, 773616, 902552, 967020, 1015371, 1128190, 1144080, 1160424, 1289360, 1353828, 1450530, 1692285, 1805104, 1934040, 2030742, 2256380, 2320848, 2707656, 2901060, 3384570, 3868080, 4061484, 4512760, 5076855, 5415312, 5802120, 6769140, 8122968, 9025520, 10153710, 11604240, 13538280, 16245936, 20307420, 27076560, 40614840, 81229680]

約数ペア:

[(1, 81229680), (2, 40614840), (3, 27076560), (4, 20307420), (5, 16245936), (6, 13538280), (7, 11604240), (8, 10153710), (9, 9025520), (10, 8122968), (12, 6769140), (14, 5802120), (15, 5415312), (16, 5076855), (18, 4512760), (20, 4061484), (21, 3868080), (24, 3384570), (28, 2901060), (30, 2707656), (35, 2320848), (36, 2256380), (40, 2030742), (42, 1934040), (45, 1805104), (48, 1692285), (56, 1450530), (60, 1353828), (63, 1289360), (70, 1160424), (71, 1144080), (72, 1128190), (80, 1015371), (84, 967020), (90, 902552), (105, 773616), (112, 725265), (120, 676914), (126, 644680), (140, 580212), (142, 572040), (144, 564095), (168, 483510), (180, 451276), (210, 386808), (213, 381360), (227, 357840), (240, 338457), (252, 322340), (280, 290106), (284, 286020), (315, 257872), (336, 241755), (355, 228816), (360, 225638), (420, 193404), (426, 190680), (454, 178920), (497, 163440), (504, 161170), (560, 145053), (568, 143010), (630, 128936), (639, 127120), (681, 119280), (710, 114408), (720, 112819), (840, 96702), (852, 95340), (908, 89460), (994, 81720), (1008, 80585), (1065, 76272), (1135, 71568), (1136, 71505), (1260, 64468), (1278, 63560), (1362, 59640), (1420, 57204), (1491, 54480), (1589, 51120), (1680, 48351), (1704, 47670), (1816, 44730), (1988, 40860), (2043, 39760), (2130, 38136), (2270, 35784), (2485, 32688), (2520, 32234), (2556, 31780), (2724, 29820), (2840, 28602), (2982, 27240), (3178, 25560), (3195, 25424), (3405, 23856), (3408, 23835), (3632, 22365), (3976, 20430), (4086, 19880), (4260, 19068), (4473, 18160), (4540, 17892), (4767, 17040), (4970, 16344), (5040, 16117), (5112, 15890), (5448, 14910), (5680, 14301), (5964, 13620), (6356, 12780), (6390, 12712), (6810, 11928), (7455, 10896), (7945, 10224), (7952, 10215), (8172, 9940), (8520, 9534), (8946, 9080)]