20787029116

素因数分解:

$2^2\times 7^2\times {\mathrm{19}}^1\times {\mathrm{593}}^1\times {\mathrm{9413}}^1$

素因数の和:10043

約数の個数: 72

約数和(自身を含む): 44623489680

約数和(自身を除く): 23836460564

約数列:

[1, 2, 4, 7, 14, 19, 28, 38, 49, 76, 98, 133, 196, 266, 532, 593, 931, 1186, 1862, 2372, 3724, 4151, 8302, 9413, 11267, 16604, 18826, 22534, 29057, 37652, 45068, 58114, 65891, 78869, 116228, 131782, 157738, 178847, 263564, 315476, 357694, 461237, 552083, 715388, 922474, 1104166, 1251929, 1844948, 2208332, 2503858, 5007716, 5581909, 8763503, 11163818, 17527006, 22327636, 35054012, 39073363, 78146726, 106056271, 156293452, 212112542, 273513541, 424225084, 547027082, 742393897, 1094054164, 1484787794, 2969575588, 5196757279, 10393514558, 20787029116]

約数ペア:

[(1, 20787029116), (2, 10393514558), (4, 5196757279), (7, 2969575588), (14, 1484787794), (19, 1094054164), (28, 742393897), (38, 547027082), (49, 424225084), (76, 273513541), (98, 212112542), (133, 156293452), (196, 106056271), (266, 78146726), (532, 39073363), (593, 35054012), (931, 22327636), (1186, 17527006), (1862, 11163818), (2372, 8763503), (3724, 5581909), (4151, 5007716), (8302, 2503858), (9413, 2208332), (11267, 1844948), (16604, 1251929), (18826, 1104166), (22534, 922474), (29057, 715388), (37652, 552083), (45068, 461237), (58114, 357694), (65891, 315476), (78869, 263564), (116228, 178847), (131782, 157738)]