19805240

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{5441}}^1$

素因数の和:5472

約数の個数: 64

約数和(自身を含む): 54855360

約数和(自身を除く): 35050120

約数列:

[1, 2, 4, 5, 7, 8, 10, 13, 14, 20, 26, 28, 35, 40, 52, 56, 65, 70, 91, 104, 130, 140, 182, 260, 280, 364, 455, 520, 728, 910, 1820, 3640, 5441, 10882, 21764, 27205, 38087, 43528, 54410, 70733, 76174, 108820, 141466, 152348, 190435, 217640, 282932, 304696, 353665, 380870, 495131, 565864, 707330, 761740, 990262, 1414660, 1523480, 1980524, 2475655, 2829320, 3961048, 4951310, 9902620, 19805240]

約数ペア:

[(1, 19805240), (2, 9902620), (4, 4951310), (5, 3961048), (7, 2829320), (8, 2475655), (10, 1980524), (13, 1523480), (14, 1414660), (20, 990262), (26, 761740), (28, 707330), (35, 565864), (40, 495131), (52, 380870), (56, 353665), (65, 304696), (70, 282932), (91, 217640), (104, 190435), (130, 152348), (140, 141466), (182, 108820), (260, 76174), (280, 70733), (364, 54410), (455, 43528), (520, 38087), (728, 27205), (910, 21764), (1820, 10882), (3640, 5441)]