290796740

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{109}}^1\times {\mathrm{331}}^1$

素因数の和:493

約数の個数: 96

約数和(自身を含む): 687160320

約数和(自身を除く): 396363580

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 31, 52, 62, 65, 109, 124, 130, 155, 218, 260, 310, 331, 403, 436, 545, 620, 662, 806, 1090, 1324, 1417, 1612, 1655, 2015, 2180, 2834, 3310, 3379, 4030, 4303, 5668, 6620, 6758, 7085, 8060, 8606, 10261, 13516, 14170, 16895, 17212, 20522, 21515, 28340, 33790, 36079, 41044, 43030, 43927, 51305, 67580, 72158, 86060, 87854, 102610, 133393, 144316, 175708, 180395, 205220, 219635, 266786, 360790, 439270, 469027, 533572, 666965, 721580, 878540, 938054, 1118449, 1333930, 1876108, 2236898, 2345135, 2667860, 4473796, 4690270, 5592245, 9380540, 11184490, 14539837, 22368980, 29079674, 58159348, 72699185, 145398370, 290796740]

約数ペア:

[(1, 290796740), (2, 145398370), (4, 72699185), (5, 58159348), (10, 29079674), (13, 22368980), (20, 14539837), (26, 11184490), (31, 9380540), (52, 5592245), (62, 4690270), (65, 4473796), (109, 2667860), (124, 2345135), (130, 2236898), (155, 1876108), (218, 1333930), (260, 1118449), (310, 938054), (331, 878540), (403, 721580), (436, 666965), (545, 533572), (620, 469027), (662, 439270), (806, 360790), (1090, 266786), (1324, 219635), (1417, 205220), (1612, 180395), (1655, 175708), (2015, 144316), (2180, 133393), (2834, 102610), (3310, 87854), (3379, 86060), (4030, 72158), (4303, 67580), (5668, 51305), (6620, 43927), (6758, 43030), (7085, 41044), (8060, 36079), (8606, 33790), (10261, 28340), (13516, 21515), (14170, 20522), (16895, 17212)]