20213382028

素因数分解:

$2^2\times 7^1\times {\mathrm{19}}^2\times {\mathrm{89}}^1\times {\mathrm{22469}}^1$

素因数の和:22607

約数の個数: 72

約数和(自身を含む): 43147792800

約数和(自身を除く): 22934410772

約数列:

[1, 2, 4, 7, 14, 19, 28, 38, 76, 89, 133, 178, 266, 356, 361, 532, 623, 722, 1246, 1444, 1691, 2492, 2527, 3382, 5054, 6764, 10108, 11837, 22469, 23674, 32129, 44938, 47348, 64258, 89876, 128516, 157283, 224903, 314566, 426911, 449806, 629132, 853822, 899612, 1707644, 1999741, 2988377, 3999482, 5976754, 7998964, 8111309, 11953508, 13998187, 16222618, 27996374, 32445236, 37995079, 55992748, 56779163, 75990158, 113558326, 151980316, 227116652, 265965553, 531931106, 721906501, 1063862212, 1443813002, 2887626004, 5053345507, 10106691014, 20213382028]

約数ペア:

[(1, 20213382028), (2, 10106691014), (4, 5053345507), (7, 2887626004), (14, 1443813002), (19, 1063862212), (28, 721906501), (38, 531931106), (76, 265965553), (89, 227116652), (133, 151980316), (178, 113558326), (266, 75990158), (356, 56779163), (361, 55992748), (532, 37995079), (623, 32445236), (722, 27996374), (1246, 16222618), (1444, 13998187), (1691, 11953508), (2492, 8111309), (2527, 7998964), (3382, 5976754), (5054, 3999482), (6764, 2988377), (10108, 1999741), (11837, 1707644), (22469, 899612), (23674, 853822), (32129, 629132), (44938, 449806), (47348, 426911), (64258, 314566), (89876, 224903), (128516, 157283)]