19856704

素因数分解:

$2^6\times 7^1\times {\mathrm{127}}^1\times {\mathrm{349}}^1$

素因数の和:495

約数の個数: 56

約数和(自身を含む): 45516800

約数和(自身を除く): 25660096

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 32, 56, 64, 112, 127, 224, 254, 349, 448, 508, 698, 889, 1016, 1396, 1778, 2032, 2443, 2792, 3556, 4064, 4886, 5584, 7112, 8128, 9772, 11168, 14224, 19544, 22336, 28448, 39088, 44323, 56896, 78176, 88646, 156352, 177292, 310261, 354584, 620522, 709168, 1241044, 1418336, 2482088, 2836672, 4964176, 9928352, 19856704]

約数ペア:

[(1, 19856704), (2, 9928352), (4, 4964176), (7, 2836672), (8, 2482088), (14, 1418336), (16, 1241044), (28, 709168), (32, 620522), (56, 354584), (64, 310261), (112, 177292), (127, 156352), (224, 88646), (254, 78176), (349, 56896), (448, 44323), (508, 39088), (698, 28448), (889, 22336), (1016, 19544), (1396, 14224), (1778, 11168), (2032, 9772), (2443, 8128), (2792, 7112), (3556, 5584), (4064, 4886)]