71621120

素因数分解:

$2^9\times 5^1\times {\mathrm{101}}^1\times {\mathrm{277}}^1$

素因数の和:401

約数の個数: 80

約数和(自身を含む): 174049128

約数和(自身を除く): 102428008

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 101, 128, 160, 202, 256, 277, 320, 404, 505, 512, 554, 640, 808, 1010, 1108, 1280, 1385, 1616, 2020, 2216, 2560, 2770, 3232, 4040, 4432, 5540, 6464, 8080, 8864, 11080, 12928, 16160, 17728, 22160, 25856, 27977, 32320, 35456, 44320, 51712, 55954, 64640, 70912, 88640, 111908, 129280, 139885, 141824, 177280, 223816, 258560, 279770, 354560, 447632, 559540, 709120, 895264, 1119080, 1790528, 2238160, 3581056, 4476320, 7162112, 8952640, 14324224, 17905280, 35810560, 71621120]

約数ペア:

[(1, 71621120), (2, 35810560), (4, 17905280), (5, 14324224), (8, 8952640), (10, 7162112), (16, 4476320), (20, 3581056), (32, 2238160), (40, 1790528), (64, 1119080), (80, 895264), (101, 709120), (128, 559540), (160, 447632), (202, 354560), (256, 279770), (277, 258560), (320, 223816), (404, 177280), (505, 141824), (512, 139885), (554, 129280), (640, 111908), (808, 88640), (1010, 70912), (1108, 64640), (1280, 55954), (1385, 51712), (1616, 44320), (2020, 35456), (2216, 32320), (2560, 27977), (2770, 25856), (3232, 22160), (4040, 17728), (4432, 16160), (5540, 12928), (6464, 11080), (8080, 8864)]