1621523120

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{43}}^1\times {\mathrm{67339}}^1$

素因数の和:67402

約数の個数: 80

約数和(自身を含む): 4408884480

約数和(自身を除く): 2787361360

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 43, 56, 70, 80, 86, 112, 140, 172, 215, 280, 301, 344, 430, 560, 602, 688, 860, 1204, 1505, 1720, 2408, 3010, 3440, 4816, 6020, 12040, 24080, 67339, 134678, 269356, 336695, 471373, 538712, 673390, 942746, 1077424, 1346780, 1885492, 2356865, 2693560, 2895577, 3770984, 4713730, 5387120, 5791154, 7541968, 9427460, 11582308, 14477885, 18854920, 20269039, 23164616, 28955770, 37709840, 40538078, 46329232, 57911540, 81076156, 101345195, 115823080, 162152312, 202690390, 231646160, 324304624, 405380780, 810761560, 1621523120]

約数ペア:

[(1, 1621523120), (2, 810761560), (4, 405380780), (5, 324304624), (7, 231646160), (8, 202690390), (10, 162152312), (14, 115823080), (16, 101345195), (20, 81076156), (28, 57911540), (35, 46329232), (40, 40538078), (43, 37709840), (56, 28955770), (70, 23164616), (80, 20269039), (86, 18854920), (112, 14477885), (140, 11582308), (172, 9427460), (215, 7541968), (280, 5791154), (301, 5387120), (344, 4713730), (430, 3770984), (560, 2895577), (602, 2693560), (688, 2356865), (860, 1885492), (1204, 1346780), (1505, 1077424), (1720, 942746), (2408, 673390), (3010, 538712), (3440, 471373), (4816, 336695), (6020, 269356), (12040, 134678), (24080, 67339)]