20025954

素因数分解:

$2^1\times 3^4\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{257}}^1$

素因数の和:321

約数の個数: 80

約数和(自身を含む): 49823928

約数和(自身を除く): 29797974

約数列:

[1, 2, 3, 6, 9, 13, 18, 26, 27, 37, 39, 54, 74, 78, 81, 111, 117, 162, 222, 234, 257, 333, 351, 481, 514, 666, 702, 771, 962, 999, 1053, 1443, 1542, 1998, 2106, 2313, 2886, 2997, 3341, 4329, 4626, 5994, 6682, 6939, 8658, 9509, 10023, 12987, 13878, 19018, 20046, 20817, 25974, 28527, 30069, 38961, 41634, 57054, 60138, 77922, 85581, 90207, 123617, 171162, 180414, 247234, 256743, 270621, 370851, 513486, 541242, 741702, 770229, 1112553, 1540458, 2225106, 3337659, 6675318, 10012977, 20025954]

約数ペア:

[(1, 20025954), (2, 10012977), (3, 6675318), (6, 3337659), (9, 2225106), (13, 1540458), (18, 1112553), (26, 770229), (27, 741702), (37, 541242), (39, 513486), (54, 370851), (74, 270621), (78, 256743), (81, 247234), (111, 180414), (117, 171162), (162, 123617), (222, 90207), (234, 85581), (257, 77922), (333, 60138), (351, 57054), (481, 41634), (514, 38961), (666, 30069), (702, 28527), (771, 25974), (962, 20817), (999, 20046), (1053, 19018), (1443, 13878), (1542, 12987), (1998, 10023), (2106, 9509), (2313, 8658), (2886, 6939), (2997, 6682), (3341, 5994), (4329, 4626)]