988418704

素因数分解:

$2^4\times 7^1\times {\mathrm{13}}^1\times {\mathrm{678859}}^1$

素因数の和:678887

約数の個数: 40

約数和(自身を含む): 2357001920

約数和(自身を除く): 1368583216

約数列:

[1, 2, 4, 7, 8, 13, 14, 16, 26, 28, 52, 56, 91, 104, 112, 182, 208, 364, 728, 1456, 678859, 1357718, 2715436, 4752013, 5430872, 8825167, 9504026, 10861744, 17650334, 19008052, 35300668, 38016104, 61776169, 70601336, 76032208, 123552338, 141202672, 247104676, 494209352, 988418704]

約数ペア:

[(1, 988418704), (2, 494209352), (4, 247104676), (7, 141202672), (8, 123552338), (13, 76032208), (14, 70601336), (16, 61776169), (26, 38016104), (28, 35300668), (52, 19008052), (56, 17650334), (91, 10861744), (104, 9504026), (112, 8825167), (182, 5430872), (208, 4752013), (364, 2715436), (728, 1357718), (1456, 678859)]