21738640

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{3529}}^1$

素因数の和:3560

約数の個数: 80

約数和(自身を含む): 63031680

約数和(自身を除く): 41293040

約数列:

[1, 2, 4, 5, 7, 8, 10, 11, 14, 16, 20, 22, 28, 35, 40, 44, 55, 56, 70, 77, 80, 88, 110, 112, 140, 154, 176, 220, 280, 308, 385, 440, 560, 616, 770, 880, 1232, 1540, 3080, 3529, 6160, 7058, 14116, 17645, 24703, 28232, 35290, 38819, 49406, 56464, 70580, 77638, 98812, 123515, 141160, 155276, 194095, 197624, 247030, 271733, 282320, 310552, 388190, 395248, 494060, 543466, 621104, 776380, 988120, 1086932, 1358665, 1552760, 1976240, 2173864, 2717330, 3105520, 4347728, 5434660, 10869320, 21738640]

約数ペア:

[(1, 21738640), (2, 10869320), (4, 5434660), (5, 4347728), (7, 3105520), (8, 2717330), (10, 2173864), (11, 1976240), (14, 1552760), (16, 1358665), (20, 1086932), (22, 988120), (28, 776380), (35, 621104), (40, 543466), (44, 494060), (55, 395248), (56, 388190), (70, 310552), (77, 282320), (80, 271733), (88, 247030), (110, 197624), (112, 194095), (140, 155276), (154, 141160), (176, 123515), (220, 98812), (280, 77638), (308, 70580), (385, 56464), (440, 49406), (560, 38819), (616, 35290), (770, 28232), (880, 24703), (1232, 17645), (1540, 14116), (3080, 7058), (3529, 6160)]