20249964812

素因数分解:

$2^2\times 7^2\times {\mathrm{11}}^1\times {\mathrm{71}}^1\times {\mathrm{132287}}^1$

素因数の和:132387

約数の個数: 72

約数和(自身を含む): 45604435968

約数和(自身を除く): 25354471156

約数列:

[1, 2, 4, 7, 11, 14, 22, 28, 44, 49, 71, 77, 98, 142, 154, 196, 284, 308, 497, 539, 781, 994, 1078, 1562, 1988, 2156, 3124, 3479, 5467, 6958, 10934, 13916, 21868, 38269, 76538, 132287, 153076, 264574, 529148, 926009, 1455157, 1852018, 2910314, 3704036, 5820628, 6482063, 9392377, 10186099, 12964126, 18784754, 20372198, 25928252, 37569508, 40744396, 65746639, 71302693, 103316147, 131493278, 142605386, 206632294, 262986556, 285210772, 413264588, 460226473, 723213029, 920452946, 1446426058, 1840905892, 2892852116, 5062491203, 10124982406, 20249964812]

約数ペア:

[(1, 20249964812), (2, 10124982406), (4, 5062491203), (7, 2892852116), (11, 1840905892), (14, 1446426058), (22, 920452946), (28, 723213029), (44, 460226473), (49, 413264588), (71, 285210772), (77, 262986556), (98, 206632294), (142, 142605386), (154, 131493278), (196, 103316147), (284, 71302693), (308, 65746639), (497, 40744396), (539, 37569508), (781, 25928252), (994, 20372198), (1078, 18784754), (1562, 12964126), (1988, 10186099), (2156, 9392377), (3124, 6482063), (3479, 5820628), (5467, 3704036), (6958, 2910314), (10934, 1852018), (13916, 1455157), (21868, 926009), (38269, 529148), (76538, 264574), (132287, 153076)]