20419056

素因数分解:

$2^4\times 3^2\times 7^1\times {\mathrm{47}}^1\times {\mathrm{431}}^1$

素因数の和:499

約数の個数: 120

約数和(自身を含む): 66852864

約数和(自身を除く): 46433808

約数列:

[1, 2, 3, 4, 6, 7, 8, 9, 12, 14, 16, 18, 21, 24, 28, 36, 42, 47, 48, 56, 63, 72, 84, 94, 112, 126, 141, 144, 168, 188, 252, 282, 329, 336, 376, 423, 431, 504, 564, 658, 752, 846, 862, 987, 1008, 1128, 1293, 1316, 1692, 1724, 1974, 2256, 2586, 2632, 2961, 3017, 3384, 3448, 3879, 3948, 5172, 5264, 5922, 6034, 6768, 6896, 7758, 7896, 9051, 10344, 11844, 12068, 15516, 15792, 18102, 20257, 20688, 23688, 24136, 27153, 31032, 36204, 40514, 47376, 48272, 54306, 60771, 62064, 72408, 81028, 108612, 121542, 141799, 144816, 162056, 182313, 217224, 243084, 283598, 324112, 364626, 425397, 434448, 486168, 567196, 729252, 850794, 972336, 1134392, 1276191, 1458504, 1701588, 2268784, 2552382, 2917008, 3403176, 5104764, 6806352, 10209528, 20419056]

約数ペア:

[(1, 20419056), (2, 10209528), (3, 6806352), (4, 5104764), (6, 3403176), (7, 2917008), (8, 2552382), (9, 2268784), (12, 1701588), (14, 1458504), (16, 1276191), (18, 1134392), (21, 972336), (24, 850794), (28, 729252), (36, 567196), (42, 486168), (47, 434448), (48, 425397), (56, 364626), (63, 324112), (72, 283598), (84, 243084), (94, 217224), (112, 182313), (126, 162056), (141, 144816), (144, 141799), (168, 121542), (188, 108612), (252, 81028), (282, 72408), (329, 62064), (336, 60771), (376, 54306), (423, 48272), (431, 47376), (504, 40514), (564, 36204), (658, 31032), (752, 27153), (846, 24136), (862, 23688), (987, 20688), (1008, 20257), (1128, 18102), (1293, 15792), (1316, 15516), (1692, 12068), (1724, 11844), (1974, 10344), (2256, 9051), (2586, 7896), (2632, 7758), (2961, 6896), (3017, 6768), (3384, 6034), (3448, 5922), (3879, 5264), (3948, 5172)]