1380950

素因数分解:

$2^1\times 5^2\times {\mathrm{71}}^1\times {\mathrm{389}}^1$

素因数の和:472

約数の個数: 24

約数和(自身を含む): 2611440

約数和(自身を除く): 1230490

約数列:

[1, 2, 5, 10, 25, 50, 71, 142, 355, 389, 710, 778, 1775, 1945, 3550, 3890, 9725, 19450, 27619, 55238, 138095, 276190, 690475, 1380950]

約数ペア:

[(1, 1380950), (2, 690475), (5, 276190), (10, 138095), (25, 55238), (50, 27619), (71, 19450), (142, 9725), (355, 3890), (389, 3550), (710, 1945), (778, 1775)]