138980260

素因数分解:

$2^2\times 5^1\times {\mathrm{23}}^1\times {\mathrm{431}}^1\times {\mathrm{701}}^1$

素因数の和:1164

約数の個数: 48

約数和(自身を含む): 305690112

約数和(自身を除く): 166709852

約数列:

[1, 2, 4, 5, 10, 20, 23, 46, 92, 115, 230, 431, 460, 701, 862, 1402, 1724, 2155, 2804, 3505, 4310, 7010, 8620, 9913, 14020, 16123, 19826, 32246, 39652, 49565, 64492, 80615, 99130, 161230, 198260, 302131, 322460, 604262, 1208524, 1510655, 3021310, 6042620, 6949013, 13898026, 27796052, 34745065, 69490130, 138980260]

約数ペア:

[(1, 138980260), (2, 69490130), (4, 34745065), (5, 27796052), (10, 13898026), (20, 6949013), (23, 6042620), (46, 3021310), (92, 1510655), (115, 1208524), (230, 604262), (431, 322460), (460, 302131), (701, 198260), (862, 161230), (1402, 99130), (1724, 80615), (2155, 64492), (2804, 49565), (3505, 39652), (4310, 32246), (7010, 19826), (8620, 16123), (9913, 14020)]