2788820

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{41}}^1\times {\mathrm{179}}^1$

素因数の和:248

約数の個数: 48

約数和(自身を含む): 6350400

約数和(自身を除く): 3561580

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 41, 76, 82, 95, 164, 179, 190, 205, 358, 380, 410, 716, 779, 820, 895, 1558, 1790, 3116, 3401, 3580, 3895, 6802, 7339, 7790, 13604, 14678, 15580, 17005, 29356, 34010, 36695, 68020, 73390, 139441, 146780, 278882, 557764, 697205, 1394410, 2788820]

約数ペア:

[(1, 2788820), (2, 1394410), (4, 697205), (5, 557764), (10, 278882), (19, 146780), (20, 139441), (38, 73390), (41, 68020), (76, 36695), (82, 34010), (95, 29356), (164, 17005), (179, 15580), (190, 14678), (205, 13604), (358, 7790), (380, 7339), (410, 6802), (716, 3895), (779, 3580), (820, 3401), (895, 3116), (1558, 1790)]