20047820

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{83}}^1\times {\mathrm{929}}^1$

素因数の和:1034

約数の個数: 48

約数和(自身を含む): 45934560

約数和(自身を除く): 25886740

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 83, 130, 166, 260, 332, 415, 830, 929, 1079, 1660, 1858, 2158, 3716, 4316, 4645, 5395, 9290, 10790, 12077, 18580, 21580, 24154, 48308, 60385, 77107, 120770, 154214, 241540, 308428, 385535, 771070, 1002391, 1542140, 2004782, 4009564, 5011955, 10023910, 20047820]

約数ペア:

[(1, 20047820), (2, 10023910), (4, 5011955), (5, 4009564), (10, 2004782), (13, 1542140), (20, 1002391), (26, 771070), (52, 385535), (65, 308428), (83, 241540), (130, 154214), (166, 120770), (260, 77107), (332, 60385), (415, 48308), (830, 24154), (929, 21580), (1079, 18580), (1660, 12077), (1858, 10790), (2158, 9290), (3716, 5395), (4316, 4645)]