19560640

素因数分解:

$2^6\times 5^1\times {\mathrm{11}}^1\times {\mathrm{5557}}^1$

素因数の和:5585

約数の個数: 56

約数和(自身を含む): 50822352

約数和(自身を除く): 31261712

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 32, 40, 44, 55, 64, 80, 88, 110, 160, 176, 220, 320, 352, 440, 704, 880, 1760, 3520, 5557, 11114, 22228, 27785, 44456, 55570, 61127, 88912, 111140, 122254, 177824, 222280, 244508, 305635, 355648, 444560, 489016, 611270, 889120, 978032, 1222540, 1778240, 1956064, 2445080, 3912128, 4890160, 9780320, 19560640]

約数ペア:

[(1, 19560640), (2, 9780320), (4, 4890160), (5, 3912128), (8, 2445080), (10, 1956064), (11, 1778240), (16, 1222540), (20, 978032), (22, 889120), (32, 611270), (40, 489016), (44, 444560), (55, 355648), (64, 305635), (80, 244508), (88, 222280), (110, 177824), (160, 122254), (176, 111140), (220, 88912), (320, 61127), (352, 55570), (440, 44456), (704, 27785), (880, 22228), (1760, 11114), (3520, 5557)]