20901780

素因数分解:

$2^2\times 3^3\times 5^1\times {\mathrm{38707}}^1$

素因数の和:38725

約数の個数: 48

約数和(自身を含む): 65029440

約数和(自身を除く): 44127660

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 27, 30, 36, 45, 54, 60, 90, 108, 135, 180, 270, 540, 38707, 77414, 116121, 154828, 193535, 232242, 348363, 387070, 464484, 580605, 696726, 774140, 1045089, 1161210, 1393452, 1741815, 2090178, 2322420, 3483630, 4180356, 5225445, 6967260, 10450890, 20901780]

約数ペア:

[(1, 20901780), (2, 10450890), (3, 6967260), (4, 5225445), (5, 4180356), (6, 3483630), (9, 2322420), (10, 2090178), (12, 1741815), (15, 1393452), (18, 1161210), (20, 1045089), (27, 774140), (30, 696726), (36, 580605), (45, 464484), (54, 387070), (60, 348363), (90, 232242), (108, 193535), (135, 154828), (180, 116121), (270, 77414), (540, 38707)]