1998979866

素因数分解:

$2^1\times 3^2\times {\mathrm{13}}^1\times {\mathrm{71}}^1\times {\mathrm{120319}}^1$

素因数の和:120411

約数の個数: 48

約数和(自身を含む): 4730019840

約数和(自身を除く): 2731039974

約数列:

[1, 2, 3, 6, 9, 13, 18, 26, 39, 71, 78, 117, 142, 213, 234, 426, 639, 923, 1278, 1846, 2769, 5538, 8307, 16614, 120319, 240638, 360957, 721914, 1082871, 1564147, 2165742, 3128294, 4692441, 8542649, 9384882, 14077323, 17085298, 25627947, 28154646, 51255894, 76883841, 111054437, 153767682, 222108874, 333163311, 666326622, 999489933, 1998979866]

約数ペア:

[(1, 1998979866), (2, 999489933), (3, 666326622), (6, 333163311), (9, 222108874), (13, 153767682), (18, 111054437), (26, 76883841), (39, 51255894), (71, 28154646), (78, 25627947), (117, 17085298), (142, 14077323), (213, 9384882), (234, 8542649), (426, 4692441), (639, 3128294), (923, 2165742), (1278, 1564147), (1846, 1082871), (2769, 721914), (5538, 360957), (8307, 240638), (16614, 120319)]