261280980

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{1451561}}^1$

素因数の和:1451576

約数の個数: 36

約数和(自身を含む): 792552852

約数和(自身を除く): 531271872

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 1451561, 2903122, 4354683, 5806244, 7257805, 8709366, 13064049, 14515610, 17418732, 21773415, 26128098, 29031220, 43546830, 52256196, 65320245, 87093660, 130640490, 261280980]

約数ペア:

[(1, 261280980), (2, 130640490), (3, 87093660), (4, 65320245), (5, 52256196), (6, 43546830), (9, 29031220), (10, 26128098), (12, 21773415), (15, 17418732), (18, 14515610), (20, 13064049), (30, 8709366), (36, 7257805), (45, 5806244), (60, 4354683), (90, 2903122), (180, 1451561)]