421553220

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{638717}}^1$

素因数の和:638740

約数の個数: 48

約数和(自身を含む): 1287655488

約数和(自身を除く): 866102268

約数列:

[1, 2, 3, 4, 5, 6, 10, 11, 12, 15, 20, 22, 30, 33, 44, 55, 60, 66, 110, 132, 165, 220, 330, 660, 638717, 1277434, 1916151, 2554868, 3193585, 3832302, 6387170, 7025887, 7664604, 9580755, 12774340, 14051774, 19161510, 21077661, 28103548, 35129435, 38323020, 42155322, 70258870, 84310644, 105388305, 140517740, 210776610, 421553220]

約数ペア:

[(1, 421553220), (2, 210776610), (3, 140517740), (4, 105388305), (5, 84310644), (6, 70258870), (10, 42155322), (11, 38323020), (12, 35129435), (15, 28103548), (20, 21077661), (22, 19161510), (30, 14051774), (33, 12774340), (44, 9580755), (55, 7664604), (60, 7025887), (66, 6387170), (110, 3832302), (132, 3193585), (165, 2554868), (220, 1916151), (330, 1277434), (660, 638717)]