1955573320

素因数分解:

$2^3\times 5^1\times {\mathrm{211}}^1\times {\mathrm{263}}^1\times {\mathrm{881}}^1$

素因数の和:1366

約数の個数: 64

約数和(自身を含む): 4442739840

約数和(自身を除く): 2487166520

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 211, 263, 422, 526, 844, 881, 1052, 1055, 1315, 1688, 1762, 2104, 2110, 2630, 3524, 4220, 4405, 5260, 7048, 8440, 8810, 10520, 17620, 35240, 55493, 110986, 185891, 221972, 231703, 277465, 371782, 443944, 463406, 554930, 743564, 926812, 929455, 1109860, 1158515, 1487128, 1853624, 1858910, 2219720, 2317030, 3717820, 4634060, 7435640, 9268120, 48889333, 97778666, 195557332, 244446665, 391114664, 488893330, 977786660, 1955573320]

約数ペア:

[(1, 1955573320), (2, 977786660), (4, 488893330), (5, 391114664), (8, 244446665), (10, 195557332), (20, 97778666), (40, 48889333), (211, 9268120), (263, 7435640), (422, 4634060), (526, 3717820), (844, 2317030), (881, 2219720), (1052, 1858910), (1055, 1853624), (1315, 1487128), (1688, 1158515), (1762, 1109860), (2104, 929455), (2110, 926812), (2630, 743564), (3524, 554930), (4220, 463406), (4405, 443944), (5260, 371782), (7048, 277465), (8440, 231703), (8810, 221972), (10520, 185891), (17620, 110986), (35240, 55493)]