85397380

素因数分解:

$2^2\times 5^1\times {\mathrm{71}}^1\times {\mathrm{60139}}^1$

素因数の和:60219

約数の個数: 24

約数和(自身を含む): 181863360

約数和(自身を除く): 96465980

約数列:

[1, 2, 4, 5, 10, 20, 71, 142, 284, 355, 710, 1420, 60139, 120278, 240556, 300695, 601390, 1202780, 4269869, 8539738, 17079476, 21349345, 42698690, 85397380]

約数ペア:

[(1, 85397380), (2, 42698690), (4, 21349345), (5, 17079476), (10, 8539738), (20, 4269869), (71, 1202780), (142, 601390), (284, 300695), (355, 240556), (710, 120278), (1420, 60139)]