138966490

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{34483}}^1$

素因数の和:34534

約数の個数: 32

約数和(自身を含む): 278078976

約数和(自身を除く): 139112486

約数列:

[1, 2, 5, 10, 13, 26, 31, 62, 65, 130, 155, 310, 403, 806, 2015, 4030, 34483, 68966, 172415, 344830, 448279, 896558, 1068973, 2137946, 2241395, 4482790, 5344865, 10689730, 13896649, 27793298, 69483245, 138966490]

約数ペア:

[(1, 138966490), (2, 69483245), (5, 27793298), (10, 13896649), (13, 10689730), (26, 5344865), (31, 4482790), (62, 2241395), (65, 2137946), (130, 1068973), (155, 896558), (310, 448279), (403, 344830), (806, 172415), (2015, 68966), (4030, 34483)]