20445436

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{89}}^1\times {\mathrm{227}}^1$

素因数の和:354

約数の個数: 48

約数和(自身を含む): 41368320

約数和(自身を除く): 20922884

約数列:

[1, 2, 4, 11, 22, 23, 44, 46, 89, 92, 178, 227, 253, 356, 454, 506, 908, 979, 1012, 1958, 2047, 2497, 3916, 4094, 4994, 5221, 8188, 9988, 10442, 20203, 20884, 22517, 40406, 45034, 57431, 80812, 90068, 114862, 222233, 229724, 444466, 464669, 888932, 929338, 1858676, 5111359, 10222718, 20445436]

約数ペア:

[(1, 20445436), (2, 10222718), (4, 5111359), (11, 1858676), (22, 929338), (23, 888932), (44, 464669), (46, 444466), (89, 229724), (92, 222233), (178, 114862), (227, 90068), (253, 80812), (356, 57431), (454, 45034), (506, 40406), (908, 22517), (979, 20884), (1012, 20203), (1958, 10442), (2047, 9988), (2497, 8188), (3916, 5221), (4094, 4994)]