81749360

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{577}}^1$

素因数の和:631

約数の個数: 160

約数和(自身を含む): 247698432

約数和(自身を除く): 165949072

約数列:

[1, 2, 4, 5, 7, 8, 10, 11, 14, 16, 20, 22, 23, 28, 35, 40, 44, 46, 55, 56, 70, 77, 80, 88, 92, 110, 112, 115, 140, 154, 161, 176, 184, 220, 230, 253, 280, 308, 322, 368, 385, 440, 460, 506, 560, 577, 616, 644, 770, 805, 880, 920, 1012, 1154, 1232, 1265, 1288, 1540, 1610, 1771, 1840, 2024, 2308, 2530, 2576, 2885, 3080, 3220, 3542, 4039, 4048, 4616, 5060, 5770, 6160, 6347, 6440, 7084, 8078, 8855, 9232, 10120, 11540, 12694, 12880, 13271, 14168, 16156, 17710, 20195, 20240, 23080, 25388, 26542, 28336, 31735, 32312, 35420, 40390, 44429, 46160, 50776, 53084, 63470, 64624, 66355, 70840, 80780, 88858, 92897, 101552, 106168, 126940, 132710, 141680, 145981, 161560, 177716, 185794, 212336, 222145, 253880, 265420, 291962, 323120, 355432, 371588, 444290, 464485, 507760, 530840, 583924, 710864, 729905, 743176, 888580, 928970, 1021867, 1061680, 1167848, 1459810, 1486352, 1777160, 1857940, 2043734, 2335696, 2919620, 3554320, 3715880, 4087468, 5109335, 5839240, 7431760, 8174936, 10218670, 11678480, 16349872, 20437340, 40874680, 81749360]

約数ペア:

[(1, 81749360), (2, 40874680), (4, 20437340), (5, 16349872), (7, 11678480), (8, 10218670), (10, 8174936), (11, 7431760), (14, 5839240), (16, 5109335), (20, 4087468), (22, 3715880), (23, 3554320), (28, 2919620), (35, 2335696), (40, 2043734), (44, 1857940), (46, 1777160), (55, 1486352), (56, 1459810), (70, 1167848), (77, 1061680), (80, 1021867), (88, 928970), (92, 888580), (110, 743176), (112, 729905), (115, 710864), (140, 583924), (154, 530840), (161, 507760), (176, 464485), (184, 444290), (220, 371588), (230, 355432), (253, 323120), (280, 291962), (308, 265420), (322, 253880), (368, 222145), (385, 212336), (440, 185794), (460, 177716), (506, 161560), (560, 145981), (577, 141680), (616, 132710), (644, 126940), (770, 106168), (805, 101552), (880, 92897), (920, 88858), (1012, 80780), (1154, 70840), (1232, 66355), (1265, 64624), (1288, 63470), (1540, 53084), (1610, 50776), (1771, 46160), (1840, 44429), (2024, 40390), (2308, 35420), (2530, 32312), (2576, 31735), (2885, 28336), (3080, 26542), (3220, 25388), (3542, 23080), (4039, 20240), (4048, 20195), (4616, 17710), (5060, 16156), (5770, 14168), (6160, 13271), (6347, 12880), (6440, 12694), (7084, 11540), (8078, 10120), (8855, 9232)]