219828020

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{28111}}^1$

素因数の和:28160

約数の個数: 48

約数和(自身を含む): 510064128

約数和(自身を除く): 290236108

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, 28111, 56222, 112444, 140555, 281110, 477887, 562220, 646553, 955774, 1293106, 1911548, 2389435, 2586212, 3232765, 4778870, 6465530, 9557740, 10991401, 12931060, 21982802, 43965604, 54957005, 109914010, 219828020]

約数ペア:

[(1, 219828020), (2, 109914010), (4, 54957005), (5, 43965604), (10, 21982802), (17, 12931060), (20, 10991401), (23, 9557740), (34, 6465530), (46, 4778870), (68, 3232765), (85, 2586212), (92, 2389435), (115, 1911548), (170, 1293106), (230, 955774), (340, 646553), (391, 562220), (460, 477887), (782, 281110), (1564, 140555), (1955, 112444), (3910, 56222), (7820, 28111)]