61543945

素因数分解:

$5^1\times {\mathrm{19}}^1\times {\mathrm{29}}^1\times {\mathrm{89}}^1\times {\mathrm{251}}^1$

素因数の和:393

約数の個数: 32

約数和(自身を含む): 81648000

約数和(自身を除く): 20104055

約数列:

[1, 5, 19, 29, 89, 95, 145, 251, 445, 551, 1255, 1691, 2581, 2755, 4769, 7279, 8455, 12905, 22339, 23845, 36395, 49039, 111695, 138301, 245195, 424441, 647831, 691505, 2122205, 3239155, 12308789, 61543945]

約数ペア:

[(1, 61543945), (5, 12308789), (19, 3239155), (29, 2122205), (89, 691505), (95, 647831), (145, 424441), (251, 245195), (445, 138301), (551, 111695), (1255, 49039), (1691, 36395), (2581, 23845), (2755, 22339), (4769, 12905), (7279, 8455)]