640902958

素因数分解:

$2^1\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{29}}^1\times {\mathrm{59}}^1\times {\mathrm{479}}^1$

素因数の和:609

約数の個数: 64

約数和(自身を含む): 1119744000

約数和(自身を除く): 478841042

約数列:

[1, 2, 17, 23, 29, 34, 46, 58, 59, 118, 391, 479, 493, 667, 782, 958, 986, 1003, 1334, 1357, 1711, 2006, 2714, 3422, 8143, 11017, 11339, 13891, 16286, 22034, 22678, 23069, 27782, 28261, 29087, 39353, 46138, 56522, 58174, 78706, 187289, 236147, 319493, 374578, 472294, 480437, 638986, 650003, 669001, 819569, 960874, 1300006, 1338002, 1639138, 5431381, 10862762, 11050051, 13932673, 18850087, 22100102, 27865346, 37700174, 320451479, 640902958]

約数ペア:

[(1, 640902958), (2, 320451479), (17, 37700174), (23, 27865346), (29, 22100102), (34, 18850087), (46, 13932673), (58, 11050051), (59, 10862762), (118, 5431381), (391, 1639138), (479, 1338002), (493, 1300006), (667, 960874), (782, 819569), (958, 669001), (986, 650003), (1003, 638986), (1334, 480437), (1357, 472294), (1711, 374578), (2006, 319493), (2714, 236147), (3422, 187289), (8143, 78706), (11017, 58174), (11339, 56522), (13891, 46138), (16286, 39353), (22034, 29087), (22678, 28261), (23069, 27782)]