20617440

素因数分解:

$2^5\times 3^1\times 5^1\times {\mathrm{42953}}^1$

素因数の和:42971

約数の個数: 48

約数和(自身を含む): 64946448

約数和(自身を除く): 44329008

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 32, 40, 48, 60, 80, 96, 120, 160, 240, 480, 42953, 85906, 128859, 171812, 214765, 257718, 343624, 429530, 515436, 644295, 687248, 859060, 1030872, 1288590, 1374496, 1718120, 2061744, 2577180, 3436240, 4123488, 5154360, 6872480, 10308720, 20617440]

約数ペア:

[(1, 20617440), (2, 10308720), (3, 6872480), (4, 5154360), (5, 4123488), (6, 3436240), (8, 2577180), (10, 2061744), (12, 1718120), (15, 1374496), (16, 1288590), (20, 1030872), (24, 859060), (30, 687248), (32, 644295), (40, 515436), (48, 429530), (60, 343624), (80, 257718), (96, 214765), (120, 171812), (160, 128859), (240, 85906), (480, 42953)]