278189460

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{29}}^1\times {\mathrm{137}}^1\times {\mathrm{389}}^1$

素因数の和:570

約数の個数: 144

約数和(自身を含む): 881571600

約数和(自身を除く): 603382140

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 29, 30, 36, 45, 58, 60, 87, 90, 116, 137, 145, 174, 180, 261, 274, 290, 348, 389, 411, 435, 522, 548, 580, 685, 778, 822, 870, 1044, 1167, 1233, 1305, 1370, 1556, 1644, 1740, 1945, 2055, 2334, 2466, 2610, 2740, 3501, 3890, 3973, 4110, 4668, 4932, 5220, 5835, 6165, 7002, 7780, 7946, 8220, 11281, 11670, 11919, 12330, 14004, 15892, 17505, 19865, 22562, 23340, 23838, 24660, 33843, 35010, 35757, 39730, 45124, 47676, 53293, 56405, 59595, 67686, 70020, 71514, 79460, 101529, 106586, 112810, 119190, 135372, 143028, 159879, 169215, 178785, 203058, 213172, 225620, 238380, 266465, 319758, 338430, 357570, 406116, 479637, 507645, 532930, 639516, 676860, 715140, 799395, 959274, 1015290, 1065860, 1545497, 1598790, 1918548, 2030580, 2398185, 3090994, 3197580, 4636491, 4796370, 6181988, 7727485, 9272982, 9592740, 13909473, 15454970, 18545964, 23182455, 27818946, 30909940, 46364910, 55637892, 69547365, 92729820, 139094730, 278189460]

約数ペア:

[(1, 278189460), (2, 139094730), (3, 92729820), (4, 69547365), (5, 55637892), (6, 46364910), (9, 30909940), (10, 27818946), (12, 23182455), (15, 18545964), (18, 15454970), (20, 13909473), (29, 9592740), (30, 9272982), (36, 7727485), (45, 6181988), (58, 4796370), (60, 4636491), (87, 3197580), (90, 3090994), (116, 2398185), (137, 2030580), (145, 1918548), (174, 1598790), (180, 1545497), (261, 1065860), (274, 1015290), (290, 959274), (348, 799395), (389, 715140), (411, 676860), (435, 639516), (522, 532930), (548, 507645), (580, 479637), (685, 406116), (778, 357570), (822, 338430), (870, 319758), (1044, 266465), (1167, 238380), (1233, 225620), (1305, 213172), (1370, 203058), (1556, 178785), (1644, 169215), (1740, 159879), (1945, 143028), (2055, 135372), (2334, 119190), (2466, 112810), (2610, 106586), (2740, 101529), (3501, 79460), (3890, 71514), (3973, 70020), (4110, 67686), (4668, 59595), (4932, 56405), (5220, 53293), (5835, 47676), (6165, 45124), (7002, 39730), (7780, 35757), (7946, 35010), (8220, 33843), (11281, 24660), (11670, 23838), (11919, 23340), (12330, 22562), (14004, 19865), (15892, 17505)]