18471860

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^2\times {\mathrm{17}}^1\times {\mathrm{449}}^1$

素因数の和:497

約数の個数: 72

約数和(自身を含む): 45246600

約数和(自身を除く): 26774740

約数列:

[1, 2, 4, 5, 10, 11, 17, 20, 22, 34, 44, 55, 68, 85, 110, 121, 170, 187, 220, 242, 340, 374, 449, 484, 605, 748, 898, 935, 1210, 1796, 1870, 2057, 2245, 2420, 3740, 4114, 4490, 4939, 7633, 8228, 8980, 9878, 10285, 15266, 19756, 20570, 24695, 30532, 38165, 41140, 49390, 54329, 76330, 83963, 98780, 108658, 152660, 167926, 217316, 271645, 335852, 419815, 543290, 839630, 923593, 1086580, 1679260, 1847186, 3694372, 4617965, 9235930, 18471860]

約数ペア:

[(1, 18471860), (2, 9235930), (4, 4617965), (5, 3694372), (10, 1847186), (11, 1679260), (17, 1086580), (20, 923593), (22, 839630), (34, 543290), (44, 419815), (55, 335852), (68, 271645), (85, 217316), (110, 167926), (121, 152660), (170, 108658), (187, 98780), (220, 83963), (242, 76330), (340, 54329), (374, 49390), (449, 41140), (484, 38165), (605, 30532), (748, 24695), (898, 20570), (935, 19756), (1210, 15266), (1796, 10285), (1870, 9878), (2057, 8980), (2245, 8228), (2420, 7633), (3740, 4939), (4114, 4490)]