20724896

素因数分解:

$2^5\times {\mathrm{19}}^1\times {\mathrm{89}}^1\times {\mathrm{383}}^1$

素因数の和:501

約数の個数: 48

約数和(自身を含む): 43545600

約数和(自身を除く): 22820704

約数列:

[1, 2, 4, 8, 16, 19, 32, 38, 76, 89, 152, 178, 304, 356, 383, 608, 712, 766, 1424, 1532, 1691, 2848, 3064, 3382, 6128, 6764, 7277, 12256, 13528, 14554, 27056, 29108, 34087, 54112, 58216, 68174, 116432, 136348, 232864, 272696, 545392, 647653, 1090784, 1295306, 2590612, 5181224, 10362448, 20724896]

約数ペア:

[(1, 20724896), (2, 10362448), (4, 5181224), (8, 2590612), (16, 1295306), (19, 1090784), (32, 647653), (38, 545392), (76, 272696), (89, 232864), (152, 136348), (178, 116432), (304, 68174), (356, 58216), (383, 54112), (608, 34087), (712, 29108), (766, 27056), (1424, 14554), (1532, 13528), (1691, 12256), (2848, 7277), (3064, 6764), (3382, 6128)]