638851428

素因数分解:

$2^2\times 3^3\times {\mathrm{1663}}^1\times {\mathrm{3557}}^1$

素因数の和:5233

約数の個数: 48

約数和(自身を含む): 1657743360

約数和(自身を除く): 1018891932

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 27, 36, 54, 108, 1663, 3326, 3557, 4989, 6652, 7114, 9978, 10671, 14228, 14967, 19956, 21342, 29934, 32013, 42684, 44901, 59868, 64026, 89802, 96039, 128052, 179604, 192078, 384156, 5915291, 11830582, 17745873, 23661164, 35491746, 53237619, 70983492, 106475238, 159712857, 212950476, 319425714, 638851428]

約数ペア:

[(1, 638851428), (2, 319425714), (3, 212950476), (4, 159712857), (6, 106475238), (9, 70983492), (12, 53237619), (18, 35491746), (27, 23661164), (36, 17745873), (54, 11830582), (108, 5915291), (1663, 384156), (3326, 192078), (3557, 179604), (4989, 128052), (6652, 96039), (7114, 89802), (9978, 64026), (10671, 59868), (14228, 44901), (14967, 42684), (19956, 32013), (21342, 29934)]