20348864

素因数分解:

$2^6\times {\mathrm{17}}^1\times {\mathrm{59}}^1\times {\mathrm{317}}^1$

素因数の和:405

約数の個数: 56

約数和(自身を含む): 43616880

約数和(自身を除く): 23268016

約数列:

[1, 2, 4, 8, 16, 17, 32, 34, 59, 64, 68, 118, 136, 236, 272, 317, 472, 544, 634, 944, 1003, 1088, 1268, 1888, 2006, 2536, 3776, 4012, 5072, 5389, 8024, 10144, 10778, 16048, 18703, 20288, 21556, 32096, 37406, 43112, 64192, 74812, 86224, 149624, 172448, 299248, 317951, 344896, 598496, 635902, 1196992, 1271804, 2543608, 5087216, 10174432, 20348864]

約数ペア:

[(1, 20348864), (2, 10174432), (4, 5087216), (8, 2543608), (16, 1271804), (17, 1196992), (32, 635902), (34, 598496), (59, 344896), (64, 317951), (68, 299248), (118, 172448), (136, 149624), (236, 86224), (272, 74812), (317, 64192), (472, 43112), (544, 37406), (634, 32096), (944, 21556), (1003, 20288), (1088, 18703), (1268, 16048), (1888, 10778), (2006, 10144), (2536, 8024), (3776, 5389), (4012, 5072)]