81789380

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{10459}}^1$

素因数の和:10508

約数の個数: 48

約数和(自身を含む): 189786240

約数和(自身を除く): 107996860

約数列:

[1, 2, 4, 5, 10, 17, 20, 23, 34, 46, 68, 85, 92, 115, 170, 230, 340, 391, 460, 782, 1564, 1955, 3910, 7820, 10459, 20918, 41836, 52295, 104590, 177803, 209180, 240557, 355606, 481114, 711212, 889015, 962228, 1202785, 1778030, 2405570, 3556060, 4089469, 4811140, 8178938, 16357876, 20447345, 40894690, 81789380]

約数ペア:

[(1, 81789380), (2, 40894690), (4, 20447345), (5, 16357876), (10, 8178938), (17, 4811140), (20, 4089469), (23, 3556060), (34, 2405570), (46, 1778030), (68, 1202785), (85, 962228), (92, 889015), (115, 711212), (170, 481114), (230, 355606), (340, 240557), (391, 209180), (460, 177803), (782, 104590), (1564, 52295), (1955, 41836), (3910, 20918), (7820, 10459)]