51380725

素因数分解:

$5^2\times {\mathrm{11}}^1\times {\mathrm{257}}^1\times {\mathrm{727}}^1$

素因数の和:1005

約数の個数: 24

約数和(自身を含む): 69870528

約数和(自身を除く): 18489803

約数列:

[1, 5, 11, 25, 55, 257, 275, 727, 1285, 2827, 3635, 6425, 7997, 14135, 18175, 39985, 70675, 186839, 199925, 934195, 2055229, 4670975, 10276145, 51380725]

約数ペア:

[(1, 51380725), (5, 10276145), (11, 4670975), (25, 2055229), (55, 934195), (257, 199925), (275, 186839), (727, 70675), (1285, 39985), (2827, 18175), (3635, 14135), (6425, 7997)]