81162400

素因数分解:

$2^5\times 5^2\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{401}}^1$

素因数の和:455

約数の個数: 144

約数和(自身を含む): 226110528

約数和(自身を除く): 144948128

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 23, 25, 32, 40, 44, 46, 50, 55, 80, 88, 92, 100, 110, 115, 160, 176, 184, 200, 220, 230, 253, 275, 352, 368, 400, 401, 440, 460, 506, 550, 575, 736, 800, 802, 880, 920, 1012, 1100, 1150, 1265, 1604, 1760, 1840, 2005, 2024, 2200, 2300, 2530, 3208, 3680, 4010, 4048, 4400, 4411, 4600, 5060, 6325, 6416, 8020, 8096, 8800, 8822, 9200, 9223, 10025, 10120, 12650, 12832, 16040, 17644, 18400, 18446, 20050, 20240, 22055, 25300, 32080, 35288, 36892, 40100, 40480, 44110, 46115, 50600, 64160, 70576, 73784, 80200, 88220, 92230, 101200, 101453, 110275, 141152, 147568, 160400, 176440, 184460, 202400, 202906, 220550, 230575, 295136, 320800, 352880, 368920, 405812, 441100, 461150, 507265, 705760, 737840, 811624, 882200, 922300, 1014530, 1475680, 1623248, 1764400, 1844600, 2029060, 2536325, 3246496, 3528800, 3689200, 4058120, 5072650, 7378400, 8116240, 10145300, 16232480, 20290600, 40581200, 81162400]

約数ペア:

[(1, 81162400), (2, 40581200), (4, 20290600), (5, 16232480), (8, 10145300), (10, 8116240), (11, 7378400), (16, 5072650), (20, 4058120), (22, 3689200), (23, 3528800), (25, 3246496), (32, 2536325), (40, 2029060), (44, 1844600), (46, 1764400), (50, 1623248), (55, 1475680), (80, 1014530), (88, 922300), (92, 882200), (100, 811624), (110, 737840), (115, 705760), (160, 507265), (176, 461150), (184, 441100), (200, 405812), (220, 368920), (230, 352880), (253, 320800), (275, 295136), (352, 230575), (368, 220550), (400, 202906), (401, 202400), (440, 184460), (460, 176440), (506, 160400), (550, 147568), (575, 141152), (736, 110275), (800, 101453), (802, 101200), (880, 92230), (920, 88220), (1012, 80200), (1100, 73784), (1150, 70576), (1265, 64160), (1604, 50600), (1760, 46115), (1840, 44110), (2005, 40480), (2024, 40100), (2200, 36892), (2300, 35288), (2530, 32080), (3208, 25300), (3680, 22055), (4010, 20240), (4048, 20050), (4400, 18446), (4411, 18400), (4600, 17644), (5060, 16040), (6325, 12832), (6416, 12650), (8020, 10120), (8096, 10025), (8800, 9223), (8822, 9200)]