208924240

素因数分解:

$2^4\times 5^1\times 7^2\times {\mathrm{223}}^1\times {\mathrm{239}}^1$

素因数の和:489

約数の個数: 120

約数和(自身を含む): 569963520

約数和(自身を除く): 361039280

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 49, 56, 70, 80, 98, 112, 140, 196, 223, 239, 245, 280, 392, 446, 478, 490, 560, 784, 892, 956, 980, 1115, 1195, 1561, 1673, 1784, 1912, 1960, 2230, 2390, 3122, 3346, 3568, 3824, 3920, 4460, 4780, 6244, 6692, 7805, 8365, 8920, 9560, 10927, 11711, 12488, 13384, 15610, 16730, 17840, 19120, 21854, 23422, 24976, 26768, 31220, 33460, 43708, 46844, 53297, 54635, 58555, 62440, 66920, 87416, 93688, 106594, 109270, 117110, 124880, 133840, 174832, 187376, 213188, 218540, 234220, 266485, 373079, 426376, 437080, 468440, 532970, 746158, 852752, 874160, 936880, 1065940, 1492316, 1865395, 2131880, 2611553, 2984632, 3730790, 4263760, 5223106, 5969264, 7461580, 10446212, 13057765, 14923160, 20892424, 26115530, 29846320, 41784848, 52231060, 104462120, 208924240]

約数ペア:

[(1, 208924240), (2, 104462120), (4, 52231060), (5, 41784848), (7, 29846320), (8, 26115530), (10, 20892424), (14, 14923160), (16, 13057765), (20, 10446212), (28, 7461580), (35, 5969264), (40, 5223106), (49, 4263760), (56, 3730790), (70, 2984632), (80, 2611553), (98, 2131880), (112, 1865395), (140, 1492316), (196, 1065940), (223, 936880), (239, 874160), (245, 852752), (280, 746158), (392, 532970), (446, 468440), (478, 437080), (490, 426376), (560, 373079), (784, 266485), (892, 234220), (956, 218540), (980, 213188), (1115, 187376), (1195, 174832), (1561, 133840), (1673, 124880), (1784, 117110), (1912, 109270), (1960, 106594), (2230, 93688), (2390, 87416), (3122, 66920), (3346, 62440), (3568, 58555), (3824, 54635), (3920, 53297), (4460, 46844), (4780, 43708), (6244, 33460), (6692, 31220), (7805, 26768), (8365, 24976), (8920, 23422), (9560, 21854), (10927, 19120), (11711, 17840), (12488, 16730), (13384, 15610)]