39768820

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{21851}}^1$

素因数の和:21880

約数の個数: 48

約数和(自身を含む): 102791808

約数和(自身を除く): 63022988

約数列:

[1, 2, 4, 5, 7, 10, 13, 14, 20, 26, 28, 35, 52, 65, 70, 91, 130, 140, 182, 260, 364, 455, 910, 1820, 21851, 43702, 87404, 109255, 152957, 218510, 284063, 305914, 437020, 568126, 611828, 764785, 1136252, 1420315, 1529570, 1988441, 2840630, 3059140, 3976882, 5681260, 7953764, 9942205, 19884410, 39768820]

約数ペア:

[(1, 39768820), (2, 19884410), (4, 9942205), (5, 7953764), (7, 5681260), (10, 3976882), (13, 3059140), (14, 2840630), (20, 1988441), (26, 1529570), (28, 1420315), (35, 1136252), (52, 764785), (65, 611828), (70, 568126), (91, 437020), (130, 305914), (140, 284063), (182, 218510), (260, 152957), (364, 109255), (455, 87404), (910, 43702), (1820, 21851)]