279307240

素因数分解:

$2^3\times 5^1\times {\mathrm{347}}^1\times {\mathrm{20123}}^1$

素因数の和:20481

約数の個数: 32

約数和(自身を含む): 630283680

約数和(自身を除く): 350976440

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 347, 694, 1388, 1735, 2776, 3470, 6940, 13880, 20123, 40246, 80492, 100615, 160984, 201230, 402460, 804920, 6982681, 13965362, 27930724, 34913405, 55861448, 69826810, 139653620, 279307240]

約数ペア:

[(1, 279307240), (2, 139653620), (4, 69826810), (5, 55861448), (8, 34913405), (10, 27930724), (20, 13965362), (40, 6982681), (347, 804920), (694, 402460), (1388, 201230), (1735, 160984), (2776, 100615), (3470, 80492), (6940, 40246), (13880, 20123)]