81563980

素因数分解:

$2^2\times 5^1\times {\mathrm{23}}^1\times {\mathrm{233}}^1\times {\mathrm{761}}^1$

素因数の和:1026

約数の個数: 48

約数和(自身を含む): 179734464

約数和(自身を除く): 98170484

約数列:

[1, 2, 4, 5, 10, 20, 23, 46, 92, 115, 230, 233, 460, 466, 761, 932, 1165, 1522, 2330, 3044, 3805, 4660, 5359, 7610, 10718, 15220, 17503, 21436, 26795, 35006, 53590, 70012, 87515, 107180, 175030, 177313, 350060, 354626, 709252, 886565, 1773130, 3546260, 4078199, 8156398, 16312796, 20390995, 40781990, 81563980]

約数ペア:

[(1, 81563980), (2, 40781990), (4, 20390995), (5, 16312796), (10, 8156398), (20, 4078199), (23, 3546260), (46, 1773130), (92, 886565), (115, 709252), (230, 354626), (233, 350060), (460, 177313), (466, 175030), (761, 107180), (932, 87515), (1165, 70012), (1522, 53590), (2330, 35006), (3044, 26795), (3805, 21436), (4660, 17503), (5359, 15220), (7610, 10718)]