20767440

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{86531}}^1$

素因数の和:86547

約数の個数: 40

約数和(自身を含む): 64379808

約数和(自身を除く): 43612368

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 40, 48, 60, 80, 120, 240, 86531, 173062, 259593, 346124, 432655, 519186, 692248, 865310, 1038372, 1297965, 1384496, 1730620, 2076744, 2595930, 3461240, 4153488, 5191860, 6922480, 10383720, 20767440]

約数ペア:

[(1, 20767440), (2, 10383720), (3, 6922480), (4, 5191860), (5, 4153488), (6, 3461240), (8, 2595930), (10, 2076744), (12, 1730620), (15, 1384496), (16, 1297965), (20, 1038372), (24, 865310), (30, 692248), (40, 519186), (48, 432655), (60, 346124), (80, 259593), (120, 173062), (240, 86531)]