81278350

素因数分解:

$2^1\times 5^2\times {\mathrm{269}}^1\times {\mathrm{6043}}^1$

素因数の和:6324

約数の個数: 24

約数和(自身を含む): 151764840

約数和(自身を除く): 70486490

約数列:

[1, 2, 5, 10, 25, 50, 269, 538, 1345, 2690, 6043, 6725, 12086, 13450, 30215, 60430, 151075, 302150, 1625567, 3251134, 8127835, 16255670, 40639175, 81278350]

約数ペア:

[(1, 81278350), (2, 40639175), (5, 16255670), (10, 8127835), (25, 3251134), (50, 1625567), (269, 302150), (538, 151075), (1345, 60430), (2690, 30215), (6043, 13450), (6725, 12086)]