21754320

素因数分解:

$2^4\times 3^1\times 5^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{563}}^1$

素因数の和:609

約数の個数: 160

約数和(自身を含む): 80566272

約数和(自身を除く): 58811952

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 16, 20, 21, 23, 24, 28, 30, 35, 40, 42, 46, 48, 56, 60, 69, 70, 80, 84, 92, 105, 112, 115, 120, 138, 140, 161, 168, 184, 210, 230, 240, 276, 280, 322, 336, 345, 368, 420, 460, 483, 552, 560, 563, 644, 690, 805, 840, 920, 966, 1104, 1126, 1288, 1380, 1610, 1680, 1689, 1840, 1932, 2252, 2415, 2576, 2760, 2815, 3220, 3378, 3864, 3941, 4504, 4830, 5520, 5630, 6440, 6756, 7728, 7882, 8445, 9008, 9660, 11260, 11823, 12880, 12949, 13512, 15764, 16890, 19320, 19705, 22520, 23646, 25898, 27024, 31528, 33780, 38640, 38847, 39410, 45040, 47292, 51796, 59115, 63056, 64745, 67560, 77694, 78820, 90643, 94584, 103592, 118230, 129490, 135120, 155388, 157640, 181286, 189168, 194235, 207184, 236460, 258980, 271929, 310776, 315280, 362572, 388470, 453215, 472920, 517960, 543858, 621552, 725144, 776940, 906430, 945840, 1035920, 1087716, 1359645, 1450288, 1553880, 1812860, 2175432, 2719290, 3107760, 3625720, 4350864, 5438580, 7251440, 10877160, 21754320]

約数ペア:

[(1, 21754320), (2, 10877160), (3, 7251440), (4, 5438580), (5, 4350864), (6, 3625720), (7, 3107760), (8, 2719290), (10, 2175432), (12, 1812860), (14, 1553880), (15, 1450288), (16, 1359645), (20, 1087716), (21, 1035920), (23, 945840), (24, 906430), (28, 776940), (30, 725144), (35, 621552), (40, 543858), (42, 517960), (46, 472920), (48, 453215), (56, 388470), (60, 362572), (69, 315280), (70, 310776), (80, 271929), (84, 258980), (92, 236460), (105, 207184), (112, 194235), (115, 189168), (120, 181286), (138, 157640), (140, 155388), (161, 135120), (168, 129490), (184, 118230), (210, 103592), (230, 94584), (240, 90643), (276, 78820), (280, 77694), (322, 67560), (336, 64745), (345, 63056), (368, 59115), (420, 51796), (460, 47292), (483, 45040), (552, 39410), (560, 38847), (563, 38640), (644, 33780), (690, 31528), (805, 27024), (840, 25898), (920, 23646), (966, 22520), (1104, 19705), (1126, 19320), (1288, 16890), (1380, 15764), (1610, 13512), (1680, 12949), (1689, 12880), (1840, 11823), (1932, 11260), (2252, 9660), (2415, 9008), (2576, 8445), (2760, 7882), (2815, 7728), (3220, 6756), (3378, 6440), (3864, 5630), (3941, 5520), (4504, 4830)]