20483385

素因数分解:

$3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{37}}^1\times {\mathrm{167}}^1$

素因数の和:242

約数の個数: 64

約数和(自身を含む): 38610432

約数和(自身を除く): 18127047

約数列:

[1, 3, 5, 13, 15, 17, 37, 39, 51, 65, 85, 111, 167, 185, 195, 221, 255, 481, 501, 555, 629, 663, 835, 1105, 1443, 1887, 2171, 2405, 2505, 2839, 3145, 3315, 6179, 6513, 7215, 8177, 8517, 9435, 10855, 14195, 18537, 24531, 30895, 32565, 36907, 40885, 42585, 80327, 92685, 105043, 110721, 122655, 184535, 240981, 315129, 401635, 525215, 553605, 1204905, 1365559, 1575645, 4096677, 6827795, 20483385]

約数ペア:

[(1, 20483385), (3, 6827795), (5, 4096677), (13, 1575645), (15, 1365559), (17, 1204905), (37, 553605), (39, 525215), (51, 401635), (65, 315129), (85, 240981), (111, 184535), (167, 122655), (185, 110721), (195, 105043), (221, 92685), (255, 80327), (481, 42585), (501, 40885), (555, 36907), (629, 32565), (663, 30895), (835, 24531), (1105, 18537), (1443, 14195), (1887, 10855), (2171, 9435), (2405, 8517), (2505, 8177), (2839, 7215), (3145, 6513), (3315, 6179)]