20111476

素因数分解:

$2^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{167}}^1$

素因数の和:229

約数の個数: 96

約数和(自身を含む): 48771072

約数和(自身を除く): 28659596

約数列:

[1, 2, 4, 7, 11, 14, 17, 22, 23, 28, 34, 44, 46, 68, 77, 92, 119, 154, 161, 167, 187, 238, 253, 308, 322, 334, 374, 391, 476, 506, 644, 668, 748, 782, 1012, 1169, 1309, 1564, 1771, 1837, 2338, 2618, 2737, 2839, 3542, 3674, 3841, 4301, 4676, 5236, 5474, 5678, 7084, 7348, 7682, 8602, 10948, 11356, 12859, 15364, 17204, 19873, 25718, 26887, 30107, 31229, 39746, 42251, 51436, 53774, 60214, 62458, 65297, 79492, 84502, 107548, 120428, 124916, 130594, 169004, 218603, 261188, 295757, 437206, 457079, 591514, 718267, 874412, 914158, 1183028, 1436534, 1828316, 2873068, 5027869, 10055738, 20111476]

約数ペア:

[(1, 20111476), (2, 10055738), (4, 5027869), (7, 2873068), (11, 1828316), (14, 1436534), (17, 1183028), (22, 914158), (23, 874412), (28, 718267), (34, 591514), (44, 457079), (46, 437206), (68, 295757), (77, 261188), (92, 218603), (119, 169004), (154, 130594), (161, 124916), (167, 120428), (187, 107548), (238, 84502), (253, 79492), (308, 65297), (322, 62458), (334, 60214), (374, 53774), (391, 51436), (476, 42251), (506, 39746), (644, 31229), (668, 30107), (748, 26887), (782, 25718), (1012, 19873), (1169, 17204), (1309, 15364), (1564, 12859), (1771, 11356), (1837, 10948), (2338, 8602), (2618, 7682), (2737, 7348), (2839, 7084), (3542, 5678), (3674, 5474), (3841, 5236), (4301, 4676)]