20781567382068

素因数分解:

$2^2\times 3^2\times {\mathrm{23}}^1\times {\mathrm{5197}}^1\times {\mathrm{4829423}}^1$

素因数の和:4834653

約数の個数: 72

約数和(自身を含む): 54825707559168

約数和(自身を除く): 34044140177100

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 23, 36, 46, 69, 92, 138, 207, 276, 414, 828, 5197, 10394, 15591, 20788, 31182, 46773, 62364, 93546, 119531, 187092, 239062, 358593, 478124, 717186, 1075779, 1434372, 2151558, 4303116, 4829423, 9658846, 14488269, 19317692, 28976538, 43464807, 57953076, 86929614, 111076729, 173859228, 222153458, 333230187, 444306916, 666460374, 999690561, 1332920748, 1999381122, 3998762244, 25098511331, 50197022662, 75295533993, 100394045324, 150591067986, 225886601979, 301182135972, 451773203958, 577265760613, 903546407916, 1154531521226, 1731797281839, 2309063042452, 3463594563678, 5195391845517, 6927189127356, 10390783691034, 20781567382068]

約数ペア:

[(1, 20781567382068), (2, 10390783691034), (3, 6927189127356), (4, 5195391845517), (6, 3463594563678), (9, 2309063042452), (12, 1731797281839), (18, 1154531521226), (23, 903546407916), (36, 577265760613), (46, 451773203958), (69, 301182135972), (92, 225886601979), (138, 150591067986), (207, 100394045324), (276, 75295533993), (414, 50197022662), (828, 25098511331), (5197, 3998762244), (10394, 1999381122), (15591, 1332920748), (20788, 999690561), (31182, 666460374), (46773, 444306916), (62364, 333230187), (93546, 222153458), (119531, 173859228), (187092, 111076729), (239062, 86929614), (358593, 57953076), (478124, 43464807), (717186, 28976538), (1075779, 19317692), (1434372, 14488269), (2151558, 9658846), (4303116, 4829423)]