20005778416

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{1579}}^1\times {\mathrm{60913}}^1$

素因数の和:62513

約数の個数: 40

約数和(自身を含む): 41769948080

約数和(自身を除く): 21764169664

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 104, 208, 1579, 3158, 6316, 12632, 20527, 25264, 41054, 60913, 82108, 121826, 164216, 243652, 328432, 487304, 791869, 974608, 1583738, 3167476, 6334952, 12669904, 96181627, 192363254, 384726508, 769453016, 1250361151, 1538906032, 2500722302, 5001444604, 10002889208, 20005778416]

約数ペア:

[(1, 20005778416), (2, 10002889208), (4, 5001444604), (8, 2500722302), (13, 1538906032), (16, 1250361151), (26, 769453016), (52, 384726508), (104, 192363254), (208, 96181627), (1579, 12669904), (3158, 6334952), (6316, 3167476), (12632, 1583738), (20527, 974608), (25264, 791869), (41054, 487304), (60913, 328432), (82108, 243652), (121826, 164216)]