18874360

素因数分解:

$2^3\times 5^1\times {\mathrm{29}}^1\times {\mathrm{53}}^1\times {\mathrm{307}}^1$

素因数の和:400

約数の個数: 64

約数和(自身を含む): 44906400

約数和(自身を除く): 26032040

約数列:

[1, 2, 4, 5, 8, 10, 20, 29, 40, 53, 58, 106, 116, 145, 212, 232, 265, 290, 307, 424, 530, 580, 614, 1060, 1160, 1228, 1535, 1537, 2120, 2456, 3070, 3074, 6140, 6148, 7685, 8903, 12280, 12296, 15370, 16271, 17806, 30740, 32542, 35612, 44515, 61480, 65084, 71224, 81355, 89030, 130168, 162710, 178060, 325420, 356120, 471859, 650840, 943718, 1887436, 2359295, 3774872, 4718590, 9437180, 18874360]

約数ペア:

[(1, 18874360), (2, 9437180), (4, 4718590), (5, 3774872), (8, 2359295), (10, 1887436), (20, 943718), (29, 650840), (40, 471859), (53, 356120), (58, 325420), (106, 178060), (116, 162710), (145, 130168), (212, 89030), (232, 81355), (265, 71224), (290, 65084), (307, 61480), (424, 44515), (530, 35612), (580, 32542), (614, 30740), (1060, 17806), (1160, 16271), (1228, 15370), (1535, 12296), (1537, 12280), (2120, 8903), (2456, 7685), (3070, 6148), (3074, 6140)]