20290600

素因数分解:

$2^3\times 5^2\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{401}}^1$

素因数の和:451

約数の個数: 96

約数和(自身を含む): 53835840

約数和(自身を除く): 33545240

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 23, 25, 40, 44, 46, 50, 55, 88, 92, 100, 110, 115, 184, 200, 220, 230, 253, 275, 401, 440, 460, 506, 550, 575, 802, 920, 1012, 1100, 1150, 1265, 1604, 2005, 2024, 2200, 2300, 2530, 3208, 4010, 4411, 4600, 5060, 6325, 8020, 8822, 9223, 10025, 10120, 12650, 16040, 17644, 18446, 20050, 22055, 25300, 35288, 36892, 40100, 44110, 46115, 50600, 73784, 80200, 88220, 92230, 101453, 110275, 176440, 184460, 202906, 220550, 230575, 368920, 405812, 441100, 461150, 507265, 811624, 882200, 922300, 1014530, 1844600, 2029060, 2536325, 4058120, 5072650, 10145300, 20290600]

約数ペア:

[(1, 20290600), (2, 10145300), (4, 5072650), (5, 4058120), (8, 2536325), (10, 2029060), (11, 1844600), (20, 1014530), (22, 922300), (23, 882200), (25, 811624), (40, 507265), (44, 461150), (46, 441100), (50, 405812), (55, 368920), (88, 230575), (92, 220550), (100, 202906), (110, 184460), (115, 176440), (184, 110275), (200, 101453), (220, 92230), (230, 88220), (253, 80200), (275, 73784), (401, 50600), (440, 46115), (460, 44110), (506, 40100), (550, 36892), (575, 35288), (802, 25300), (920, 22055), (1012, 20050), (1100, 18446), (1150, 17644), (1265, 16040), (1604, 12650), (2005, 10120), (2024, 10025), (2200, 9223), (2300, 8822), (2530, 8020), (3208, 6325), (4010, 5060), (4411, 4600)]