20953240

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{6803}}^1$

素因数の和:6832

約数の個数: 64

約数和(自身を含む): 58786560

約数和(自身を除く): 37833320

約数列:

[1, 2, 4, 5, 7, 8, 10, 11, 14, 20, 22, 28, 35, 40, 44, 55, 56, 70, 77, 88, 110, 140, 154, 220, 280, 308, 385, 440, 616, 770, 1540, 3080, 6803, 13606, 27212, 34015, 47621, 54424, 68030, 74833, 95242, 136060, 149666, 190484, 238105, 272120, 299332, 374165, 380968, 476210, 523831, 598664, 748330, 952420, 1047662, 1496660, 1904840, 2095324, 2619155, 2993320, 4190648, 5238310, 10476620, 20953240]

約数ペア:

[(1, 20953240), (2, 10476620), (4, 5238310), (5, 4190648), (7, 2993320), (8, 2619155), (10, 2095324), (11, 1904840), (14, 1496660), (20, 1047662), (22, 952420), (28, 748330), (35, 598664), (40, 523831), (44, 476210), (55, 380968), (56, 374165), (70, 299332), (77, 272120), (88, 238105), (110, 190484), (140, 149666), (154, 136060), (220, 95242), (280, 74833), (308, 68030), (385, 54424), (440, 47621), (616, 34015), (770, 27212), (1540, 13606), (3080, 6803)]