30805180

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{139}}^1\times {\mathrm{1583}}^1$

素因数の和:1738

約数の個数: 48

約数和(自身を含む): 74511360

約数和(自身を除く): 43706180

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 139, 140, 278, 556, 695, 973, 1390, 1583, 1946, 2780, 3166, 3892, 4865, 6332, 7915, 9730, 11081, 15830, 19460, 22162, 31660, 44324, 55405, 110810, 220037, 221620, 440074, 880148, 1100185, 1540259, 2200370, 3080518, 4400740, 6161036, 7701295, 15402590, 30805180]

約数ペア:

[(1, 30805180), (2, 15402590), (4, 7701295), (5, 6161036), (7, 4400740), (10, 3080518), (14, 2200370), (20, 1540259), (28, 1100185), (35, 880148), (70, 440074), (139, 221620), (140, 220037), (278, 110810), (556, 55405), (695, 44324), (973, 31660), (1390, 22162), (1583, 19460), (1946, 15830), (2780, 11081), (3166, 9730), (3892, 7915), (4865, 6332)]