996878920

素因数分解:

$2^3\times 5^1\times {\mathrm{41}}^1\times {\mathrm{271}}^1\times {\mathrm{2243}}^1$

素因数の和:2566

約数の個数: 64

約数和(自身を含む): 2307191040

約数和(自身を除く): 1310312120

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 41, 82, 164, 205, 271, 328, 410, 542, 820, 1084, 1355, 1640, 2168, 2243, 2710, 4486, 5420, 8972, 10840, 11111, 11215, 17944, 22222, 22430, 44444, 44860, 55555, 88888, 89720, 91963, 111110, 183926, 222220, 367852, 444440, 459815, 607853, 735704, 919630, 1215706, 1839260, 2431412, 3039265, 3678520, 4862824, 6078530, 12157060, 24314120, 24921973, 49843946, 99687892, 124609865, 199375784, 249219730, 498439460, 996878920]

約数ペア:

[(1, 996878920), (2, 498439460), (4, 249219730), (5, 199375784), (8, 124609865), (10, 99687892), (20, 49843946), (40, 24921973), (41, 24314120), (82, 12157060), (164, 6078530), (205, 4862824), (271, 3678520), (328, 3039265), (410, 2431412), (542, 1839260), (820, 1215706), (1084, 919630), (1355, 735704), (1640, 607853), (2168, 459815), (2243, 444440), (2710, 367852), (4486, 222220), (5420, 183926), (8972, 111110), (10840, 91963), (11111, 89720), (11215, 88888), (17944, 55555), (22222, 44860), (22430, 44444)]