212961920

素因数分解:

$2^7\times 5^1\times {\mathrm{269}}^1\times {\mathrm{1237}}^1$

素因数の和:1525

約数の個数: 64

約数和(自身を含む): 511417800

約数和(自身を除く): 298455880

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 269, 320, 538, 640, 1076, 1237, 1345, 2152, 2474, 2690, 4304, 4948, 5380, 6185, 8608, 9896, 10760, 12370, 17216, 19792, 21520, 24740, 34432, 39584, 43040, 49480, 79168, 86080, 98960, 158336, 172160, 197920, 332753, 395840, 665506, 791680, 1331012, 1663765, 2662024, 3327530, 5324048, 6655060, 10648096, 13310120, 21296192, 26620240, 42592384, 53240480, 106480960, 212961920]

約数ペア:

[(1, 212961920), (2, 106480960), (4, 53240480), (5, 42592384), (8, 26620240), (10, 21296192), (16, 13310120), (20, 10648096), (32, 6655060), (40, 5324048), (64, 3327530), (80, 2662024), (128, 1663765), (160, 1331012), (269, 791680), (320, 665506), (538, 395840), (640, 332753), (1076, 197920), (1237, 172160), (1345, 158336), (2152, 98960), (2474, 86080), (2690, 79168), (4304, 49480), (4948, 43040), (5380, 39584), (6185, 34432), (8608, 24740), (9896, 21520), (10760, 19792), (12370, 17216)]