646025940

素因数分解:

$2^2\times 3^2\times 5^1\times 7^1\times {\mathrm{331}}^1\times {\mathrm{1549}}^1$

素因数の和:1902

約数の個数: 144

約数和(自身を含む): 2247772800

約数和(自身を除く): 1601746860

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 18, 20, 21, 28, 30, 35, 36, 42, 45, 60, 63, 70, 84, 90, 105, 126, 140, 180, 210, 252, 315, 331, 420, 630, 662, 993, 1260, 1324, 1549, 1655, 1986, 2317, 2979, 3098, 3310, 3972, 4634, 4647, 4965, 5958, 6196, 6620, 6951, 7745, 9268, 9294, 9930, 10843, 11585, 11916, 13902, 13941, 14895, 15490, 18588, 19860, 20853, 21686, 23170, 23235, 27804, 27882, 29790, 30980, 32529, 34755, 41706, 43372, 46340, 46470, 54215, 55764, 59580, 65058, 69510, 69705, 83412, 92940, 97587, 104265, 108430, 130116, 139020, 139410, 162645, 195174, 208530, 216860, 278820, 325290, 390348, 417060, 487935, 512719, 650580, 975870, 1025438, 1538157, 1951740, 2050876, 2563595, 3076314, 3589033, 4614471, 5127190, 6152628, 7178066, 7690785, 9228942, 10254380, 10767099, 14356132, 15381570, 17945165, 18457884, 21534198, 23072355, 30763140, 32301297, 35890330, 43068396, 46144710, 53835495, 64602594, 71780660, 92289420, 107670990, 129205188, 161506485, 215341980, 323012970, 646025940]

約数ペア:

[(1, 646025940), (2, 323012970), (3, 215341980), (4, 161506485), (5, 129205188), (6, 107670990), (7, 92289420), (9, 71780660), (10, 64602594), (12, 53835495), (14, 46144710), (15, 43068396), (18, 35890330), (20, 32301297), (21, 30763140), (28, 23072355), (30, 21534198), (35, 18457884), (36, 17945165), (42, 15381570), (45, 14356132), (60, 10767099), (63, 10254380), (70, 9228942), (84, 7690785), (90, 7178066), (105, 6152628), (126, 5127190), (140, 4614471), (180, 3589033), (210, 3076314), (252, 2563595), (315, 2050876), (331, 1951740), (420, 1538157), (630, 1025438), (662, 975870), (993, 650580), (1260, 512719), (1324, 487935), (1549, 417060), (1655, 390348), (1986, 325290), (2317, 278820), (2979, 216860), (3098, 208530), (3310, 195174), (3972, 162645), (4634, 139410), (4647, 139020), (4965, 130116), (5958, 108430), (6196, 104265), (6620, 97587), (6951, 92940), (7745, 83412), (9268, 69705), (9294, 69510), (9930, 65058), (10843, 59580), (11585, 55764), (11916, 54215), (13902, 46470), (13941, 46340), (14895, 43372), (15490, 41706), (18588, 34755), (19860, 32529), (20853, 30980), (21686, 29790), (23170, 27882), (23235, 27804)]