25831780

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{73}}^1\times {\mathrm{1361}}^1$

素因数の和:1456

約数の個数: 48

約数和(自身を含む): 59263344

約数和(自身を除く): 33431564

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 73, 130, 146, 260, 292, 365, 730, 949, 1361, 1460, 1898, 2722, 3796, 4745, 5444, 6805, 9490, 13610, 17693, 18980, 27220, 35386, 70772, 88465, 99353, 176930, 198706, 353860, 397412, 496765, 993530, 1291589, 1987060, 2583178, 5166356, 6457945, 12915890, 25831780]

約数ペア:

[(1, 25831780), (2, 12915890), (4, 6457945), (5, 5166356), (10, 2583178), (13, 1987060), (20, 1291589), (26, 993530), (52, 496765), (65, 397412), (73, 353860), (130, 198706), (146, 176930), (260, 99353), (292, 88465), (365, 70772), (730, 35386), (949, 27220), (1361, 18980), (1460, 17693), (1898, 13610), (2722, 9490), (3796, 6805), (4745, 5444)]