18835355

素因数分解:

$5^1\times 7^2\times {\mathrm{11}}^1\times {\mathrm{29}}^1\times {\mathrm{241}}^1$

素因数の和:300

約数の個数: 48

約数和(自身を含む): 29795040

約数和(自身を除く): 10959685

約数列:

[1, 5, 7, 11, 29, 35, 49, 55, 77, 145, 203, 241, 245, 319, 385, 539, 1015, 1205, 1421, 1595, 1687, 2233, 2651, 2695, 6989, 7105, 8435, 11165, 11809, 13255, 15631, 18557, 34945, 48923, 59045, 76879, 78155, 92785, 129899, 244615, 342461, 384395, 538153, 649495, 1712305, 2690765, 3767071, 18835355]

約数ペア:

[(1, 18835355), (5, 3767071), (7, 2690765), (11, 1712305), (29, 649495), (35, 538153), (49, 384395), (55, 342461), (77, 244615), (145, 129899), (203, 92785), (241, 78155), (245, 76879), (319, 59045), (385, 48923), (539, 34945), (1015, 18557), (1205, 15631), (1421, 13255), (1595, 11809), (1687, 11165), (2233, 8435), (2651, 7105), (2695, 6989)]