20159672

素因数分解:

$2^3\times {\mathrm{13}}^3\times {\mathrm{31}}^1\times {\mathrm{37}}^1$

素因数の和:113

約数の個数: 64

約数和(自身を含む): 43411200

約数和(自身を除く): 23251528

約数列:

[1, 2, 4, 8, 13, 26, 31, 37, 52, 62, 74, 104, 124, 148, 169, 248, 296, 338, 403, 481, 676, 806, 962, 1147, 1352, 1612, 1924, 2197, 2294, 3224, 3848, 4394, 4588, 5239, 6253, 8788, 9176, 10478, 12506, 14911, 17576, 20956, 25012, 29822, 41912, 50024, 59644, 68107, 81289, 119288, 136214, 162578, 193843, 272428, 325156, 387686, 544856, 650312, 775372, 1550744, 2519959, 5039918, 10079836, 20159672]

約数ペア:

[(1, 20159672), (2, 10079836), (4, 5039918), (8, 2519959), (13, 1550744), (26, 775372), (31, 650312), (37, 544856), (52, 387686), (62, 325156), (74, 272428), (104, 193843), (124, 162578), (148, 136214), (169, 119288), (248, 81289), (296, 68107), (338, 59644), (403, 50024), (481, 41912), (676, 29822), (806, 25012), (962, 20956), (1147, 17576), (1352, 14911), (1612, 12506), (1924, 10478), (2197, 9176), (2294, 8788), (3224, 6253), (3848, 5239), (4394, 4588)]