81759480

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{2693}}^1$

素因数の和:2741

約数の個数: 128

約数和(自身を含む): 279313920

約数和(自身を除く): 197554440

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 11, 12, 15, 20, 22, 23, 24, 30, 33, 40, 44, 46, 55, 60, 66, 69, 88, 92, 110, 115, 120, 132, 138, 165, 184, 220, 230, 253, 264, 276, 330, 345, 440, 460, 506, 552, 660, 690, 759, 920, 1012, 1265, 1320, 1380, 1518, 2024, 2530, 2693, 2760, 3036, 3795, 5060, 5386, 6072, 7590, 8079, 10120, 10772, 13465, 15180, 16158, 21544, 26930, 29623, 30360, 32316, 40395, 53860, 59246, 61939, 64632, 80790, 88869, 107720, 118492, 123878, 148115, 161580, 177738, 185817, 236984, 247756, 296230, 309695, 323160, 355476, 371634, 444345, 495512, 592460, 619390, 681329, 710952, 743268, 888690, 929085, 1184920, 1238780, 1362658, 1486536, 1777380, 1858170, 2043987, 2477560, 2725316, 3406645, 3554760, 3716340, 4087974, 5450632, 6813290, 7432680, 8175948, 10219935, 13626580, 16351896, 20439870, 27253160, 40879740, 81759480]

約数ペア:

[(1, 81759480), (2, 40879740), (3, 27253160), (4, 20439870), (5, 16351896), (6, 13626580), (8, 10219935), (10, 8175948), (11, 7432680), (12, 6813290), (15, 5450632), (20, 4087974), (22, 3716340), (23, 3554760), (24, 3406645), (30, 2725316), (33, 2477560), (40, 2043987), (44, 1858170), (46, 1777380), (55, 1486536), (60, 1362658), (66, 1238780), (69, 1184920), (88, 929085), (92, 888690), (110, 743268), (115, 710952), (120, 681329), (132, 619390), (138, 592460), (165, 495512), (184, 444345), (220, 371634), (230, 355476), (253, 323160), (264, 309695), (276, 296230), (330, 247756), (345, 236984), (440, 185817), (460, 177738), (506, 161580), (552, 148115), (660, 123878), (690, 118492), (759, 107720), (920, 88869), (1012, 80790), (1265, 64632), (1320, 61939), (1380, 59246), (1518, 53860), (2024, 40395), (2530, 32316), (2693, 30360), (2760, 29623), (3036, 26930), (3795, 21544), (5060, 16158), (5386, 15180), (6072, 13465), (7590, 10772), (8079, 10120)]