996899841640

素因数分解:

$2^3\times 5^1\times {\mathrm{71}}^1\times {\mathrm{157}}^1\times {\mathrm{2235803}}^1$

素因数の和:2236042

約数の個数: 64

約数和(自身を含む): 2289105567360

約数和(自身を除く): 1292205725720

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 71, 142, 157, 284, 314, 355, 568, 628, 710, 785, 1256, 1420, 1570, 2840, 3140, 6280, 11147, 22294, 44588, 55735, 89176, 111470, 222940, 445880, 2235803, 4471606, 8943212, 11179015, 17886424, 22358030, 44716060, 89432120, 158742013, 317484026, 351021071, 634968052, 702042142, 793710065, 1269936104, 1404084284, 1587420130, 1755105355, 2808168568, 3174840260, 3510210710, 6349680520, 7020421420, 14040842840, 24922496041, 49844992082, 99689984164, 124612480205, 199379968328, 249224960410, 498449920820, 996899841640]

約数ペア:

[(1, 996899841640), (2, 498449920820), (4, 249224960410), (5, 199379968328), (8, 124612480205), (10, 99689984164), (20, 49844992082), (40, 24922496041), (71, 14040842840), (142, 7020421420), (157, 6349680520), (284, 3510210710), (314, 3174840260), (355, 2808168568), (568, 1755105355), (628, 1587420130), (710, 1404084284), (785, 1269936104), (1256, 793710065), (1420, 702042142), (1570, 634968052), (2840, 351021071), (3140, 317484026), (6280, 158742013), (11147, 89432120), (22294, 44716060), (44588, 22358030), (55735, 17886424), (89176, 11179015), (111470, 8943212), (222940, 4471606), (445880, 2235803)]