20291376

素因数分解:

$2^4\times 3^1\times 7^1\times {\mathrm{131}}^1\times {\mathrm{461}}^1$

素因数の和:610

約数の個数: 80

約数和(自身を含む): 60496128

約数和(自身を除く): 40204752

約数列:

[1, 2, 3, 4, 6, 7, 8, 12, 14, 16, 21, 24, 28, 42, 48, 56, 84, 112, 131, 168, 262, 336, 393, 461, 524, 786, 917, 922, 1048, 1383, 1572, 1834, 1844, 2096, 2751, 2766, 3144, 3227, 3668, 3688, 5502, 5532, 6288, 6454, 7336, 7376, 9681, 11004, 11064, 12908, 14672, 19362, 22008, 22128, 25816, 38724, 44016, 51632, 60391, 77448, 120782, 154896, 181173, 241564, 362346, 422737, 483128, 724692, 845474, 966256, 1268211, 1449384, 1690948, 2536422, 2898768, 3381896, 5072844, 6763792, 10145688, 20291376]

約数ペア:

[(1, 20291376), (2, 10145688), (3, 6763792), (4, 5072844), (6, 3381896), (7, 2898768), (8, 2536422), (12, 1690948), (14, 1449384), (16, 1268211), (21, 966256), (24, 845474), (28, 724692), (42, 483128), (48, 422737), (56, 362346), (84, 241564), (112, 181173), (131, 154896), (168, 120782), (262, 77448), (336, 60391), (393, 51632), (461, 44016), (524, 38724), (786, 25816), (917, 22128), (922, 22008), (1048, 19362), (1383, 14672), (1572, 12908), (1834, 11064), (1844, 11004), (2096, 9681), (2751, 7376), (2766, 7336), (3144, 6454), (3227, 6288), (3668, 5532), (3688, 5502)]