20806301690

素因数分解:

$2^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{47}}^1\times {\mathrm{53}}^1\times {\mathrm{43961}}^1$

素因数の和:44087

約数の個数: 64

約数和(自身を含む): 41021821440

約数和(自身を除く): 20215519750

約数列:

[1, 2, 5, 10, 19, 38, 47, 53, 94, 95, 106, 190, 235, 265, 470, 530, 893, 1007, 1786, 2014, 2491, 4465, 4982, 5035, 8930, 10070, 12455, 24910, 43961, 47329, 87922, 94658, 219805, 236645, 439610, 473290, 835259, 1670518, 2066167, 2329933, 4132334, 4176295, 4659866, 8352590, 10330835, 11649665, 20661670, 23299330, 39257173, 44268727, 78514346, 88537454, 109506851, 196285865, 219013702, 221343635, 392571730, 442687270, 547534255, 1095068510, 2080630169, 4161260338, 10403150845, 20806301690]

約数ペア:

[(1, 20806301690), (2, 10403150845), (5, 4161260338), (10, 2080630169), (19, 1095068510), (38, 547534255), (47, 442687270), (53, 392571730), (94, 221343635), (95, 219013702), (106, 196285865), (190, 109506851), (235, 88537454), (265, 78514346), (470, 44268727), (530, 39257173), (893, 23299330), (1007, 20661670), (1786, 11649665), (2014, 10330835), (2491, 8352590), (4465, 4659866), (4982, 4176295), (5035, 4132334), (8930, 2329933), (10070, 2066167), (12455, 1670518), (24910, 835259), (43961, 473290), (47329, 439610), (87922, 236645), (94658, 219805)]