820257660

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{1373}}^1\times {\mathrm{3319}}^1$

素因数の和:4707

約数の個数: 72

約数和(自身を含む): 2490677280

約数和(自身を除く): 1670419620

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 1373, 2746, 3319, 4119, 5492, 6638, 6865, 8238, 9957, 12357, 13276, 13730, 16476, 16595, 19914, 20595, 24714, 27460, 29871, 33190, 39828, 41190, 49428, 49785, 59742, 61785, 66380, 82380, 99570, 119484, 123570, 149355, 199140, 247140, 298710, 597420, 4556987, 9113974, 13670961, 18227948, 22784935, 27341922, 41012883, 45569870, 54683844, 68354805, 82025766, 91139740, 136709610, 164051532, 205064415, 273419220, 410128830, 820257660]

約数ペア:

[(1, 820257660), (2, 410128830), (3, 273419220), (4, 205064415), (5, 164051532), (6, 136709610), (9, 91139740), (10, 82025766), (12, 68354805), (15, 54683844), (18, 45569870), (20, 41012883), (30, 27341922), (36, 22784935), (45, 18227948), (60, 13670961), (90, 9113974), (180, 4556987), (1373, 597420), (2746, 298710), (3319, 247140), (4119, 199140), (5492, 149355), (6638, 123570), (6865, 119484), (8238, 99570), (9957, 82380), (12357, 66380), (13276, 61785), (13730, 59742), (16476, 49785), (16595, 49428), (19914, 41190), (20595, 39828), (24714, 33190), (27460, 29871)]