20781044556

素因数分解:

$2^2\times 3^1\times {\mathrm{31}}^2\times {\mathrm{827}}^1\times {\mathrm{2179}}^1$

素因数の和:3075

約数の個数: 72

約数和(自身を含む): 50187332160

約数和(自身を除く): 29406287604

約数列:

[1, 2, 3, 4, 6, 12, 31, 62, 93, 124, 186, 372, 827, 961, 1654, 1922, 2179, 2481, 2883, 3308, 3844, 4358, 4962, 5766, 6537, 8716, 9924, 11532, 13074, 25637, 26148, 51274, 67549, 76911, 102548, 135098, 153822, 202647, 270196, 307644, 405294, 794747, 810588, 1589494, 1802033, 2094019, 2384241, 3178988, 3604066, 4188038, 4768482, 5406099, 6282057, 7208132, 8376076, 9536964, 10812198, 12564114, 21624396, 25128228, 55863023, 111726046, 167589069, 223452092, 335178138, 670356276, 1731753713, 3463507426, 5195261139, 6927014852, 10390522278, 20781044556]

約数ペア:

[(1, 20781044556), (2, 10390522278), (3, 6927014852), (4, 5195261139), (6, 3463507426), (12, 1731753713), (31, 670356276), (62, 335178138), (93, 223452092), (124, 167589069), (186, 111726046), (372, 55863023), (827, 25128228), (961, 21624396), (1654, 12564114), (1922, 10812198), (2179, 9536964), (2481, 8376076), (2883, 7208132), (3308, 6282057), (3844, 5406099), (4358, 4768482), (4962, 4188038), (5766, 3604066), (6537, 3178988), (8716, 2384241), (9924, 2094019), (11532, 1802033), (13074, 1589494), (25637, 810588), (26148, 794747), (51274, 405294), (67549, 307644), (76911, 270196), (102548, 202647), (135098, 153822)]