81313920

素因数分解:

$2^7\times 3^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{743}}^1$

素因数の和:787

約数の個数: 192

約数和(自身を含む): 295963200

約数和(自身を除く): 214649280

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 19, 20, 24, 30, 32, 36, 38, 40, 45, 48, 57, 60, 64, 72, 76, 80, 90, 95, 96, 114, 120, 128, 144, 152, 160, 171, 180, 190, 192, 228, 240, 285, 288, 304, 320, 342, 360, 380, 384, 456, 480, 570, 576, 608, 640, 684, 720, 743, 760, 855, 912, 960, 1140, 1152, 1216, 1368, 1440, 1486, 1520, 1710, 1824, 1920, 2229, 2280, 2432, 2736, 2880, 2972, 3040, 3420, 3648, 3715, 4458, 4560, 5472, 5760, 5944, 6080, 6687, 6840, 7296, 7430, 8916, 9120, 10944, 11145, 11888, 12160, 13374, 13680, 14117, 14860, 17832, 18240, 21888, 22290, 23776, 26748, 27360, 28234, 29720, 33435, 35664, 36480, 42351, 44580, 47552, 53496, 54720, 56468, 59440, 66870, 70585, 71328, 84702, 89160, 95104, 106992, 109440, 112936, 118880, 127053, 133740, 141170, 142656, 169404, 178320, 211755, 213984, 225872, 237760, 254106, 267480, 282340, 285312, 338808, 356640, 423510, 427968, 451744, 475520, 508212, 534960, 564680, 635265, 677616, 713280, 847020, 855936, 903488, 1016424, 1069920, 1129360, 1270530, 1355232, 1426560, 1694040, 1806976, 2032848, 2139840, 2258720, 2541060, 2710464, 3388080, 4065696, 4279680, 4517440, 5082120, 5420928, 6776160, 8131392, 9034880, 10164240, 13552320, 16262784, 20328480, 27104640, 40656960, 81313920]

約数ペア:

[(1, 81313920), (2, 40656960), (3, 27104640), (4, 20328480), (5, 16262784), (6, 13552320), (8, 10164240), (9, 9034880), (10, 8131392), (12, 6776160), (15, 5420928), (16, 5082120), (18, 4517440), (19, 4279680), (20, 4065696), (24, 3388080), (30, 2710464), (32, 2541060), (36, 2258720), (38, 2139840), (40, 2032848), (45, 1806976), (48, 1694040), (57, 1426560), (60, 1355232), (64, 1270530), (72, 1129360), (76, 1069920), (80, 1016424), (90, 903488), (95, 855936), (96, 847020), (114, 713280), (120, 677616), (128, 635265), (144, 564680), (152, 534960), (160, 508212), (171, 475520), (180, 451744), (190, 427968), (192, 423510), (228, 356640), (240, 338808), (285, 285312), (288, 282340), (304, 267480), (320, 254106), (342, 237760), (360, 225872), (380, 213984), (384, 211755), (456, 178320), (480, 169404), (570, 142656), (576, 141170), (608, 133740), (640, 127053), (684, 118880), (720, 112936), (743, 109440), (760, 106992), (855, 95104), (912, 89160), (960, 84702), (1140, 71328), (1152, 70585), (1216, 66870), (1368, 59440), (1440, 56468), (1486, 54720), (1520, 53496), (1710, 47552), (1824, 44580), (1920, 42351), (2229, 36480), (2280, 35664), (2432, 33435), (2736, 29720), (2880, 28234), (2972, 27360), (3040, 26748), (3420, 23776), (3648, 22290), (3715, 21888), (4458, 18240), (4560, 17832), (5472, 14860), (5760, 14117), (5944, 13680), (6080, 13374), (6687, 12160), (6840, 11888), (7296, 11145), (7430, 10944), (8916, 9120)]