290499056

素因数分解:

$2^4\times {\mathrm{19}}^1\times {\mathrm{43}}^1\times {\mathrm{71}}^1\times {\mathrm{313}}^1$

素因数の和:454

約数の個数: 80

約数和(自身を含む): 616746240

約数和(自身を除く): 326247184

約数列:

[1, 2, 4, 8, 16, 19, 38, 43, 71, 76, 86, 142, 152, 172, 284, 304, 313, 344, 568, 626, 688, 817, 1136, 1252, 1349, 1634, 2504, 2698, 3053, 3268, 5008, 5396, 5947, 6106, 6536, 10792, 11894, 12212, 13072, 13459, 21584, 22223, 23788, 24424, 26918, 44446, 47576, 48848, 53836, 58007, 88892, 95152, 107672, 116014, 177784, 215344, 232028, 255721, 355568, 422237, 464056, 511442, 844474, 928112, 955589, 1022884, 1688948, 1911178, 2045768, 3377896, 3822356, 4091536, 6755792, 7644712, 15289424, 18156191, 36312382, 72624764, 145249528, 290499056]

約数ペア:

[(1, 290499056), (2, 145249528), (4, 72624764), (8, 36312382), (16, 18156191), (19, 15289424), (38, 7644712), (43, 6755792), (71, 4091536), (76, 3822356), (86, 3377896), (142, 2045768), (152, 1911178), (172, 1688948), (284, 1022884), (304, 955589), (313, 928112), (344, 844474), (568, 511442), (626, 464056), (688, 422237), (817, 355568), (1136, 255721), (1252, 232028), (1349, 215344), (1634, 177784), (2504, 116014), (2698, 107672), (3053, 95152), (3268, 88892), (5008, 58007), (5396, 53836), (5947, 48848), (6106, 47576), (6536, 44446), (10792, 26918), (11894, 24424), (12212, 23788), (13072, 22223), (13459, 21584)]