15781660

素因数分解:

$2^2\times 5^1\times {\mathrm{47}}^1\times {\mathrm{103}}^1\times {\mathrm{163}}^1$

素因数の和:322

約数の個数: 48

約数和(自身を含む): 34384896

約数和(自身を除く): 18603236

約数列:

[1, 2, 4, 5, 10, 20, 47, 94, 103, 163, 188, 206, 235, 326, 412, 470, 515, 652, 815, 940, 1030, 1630, 2060, 3260, 4841, 7661, 9682, 15322, 16789, 19364, 24205, 30644, 33578, 38305, 48410, 67156, 76610, 83945, 96820, 153220, 167890, 335780, 789083, 1578166, 3156332, 3945415, 7890830, 15781660]

約数ペア:

[(1, 15781660), (2, 7890830), (4, 3945415), (5, 3156332), (10, 1578166), (20, 789083), (47, 335780), (94, 167890), (103, 153220), (163, 96820), (188, 83945), (206, 76610), (235, 67156), (326, 48410), (412, 38305), (470, 33578), (515, 30644), (652, 24205), (815, 19364), (940, 16789), (1030, 15322), (1630, 9682), (2060, 7661), (3260, 4841)]