19115720

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{36761}}^1$

素因数の和:36785

約数の個数: 32

約数和(自身を含む): 46320120

約数和(自身を除く): 27204400

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 260, 520, 36761, 73522, 147044, 183805, 294088, 367610, 477893, 735220, 955786, 1470440, 1911572, 2389465, 3823144, 4778930, 9557860, 19115720]

約数ペア:

[(1, 19115720), (2, 9557860), (4, 4778930), (5, 3823144), (8, 2389465), (10, 1911572), (13, 1470440), (20, 955786), (26, 735220), (40, 477893), (52, 367610), (65, 294088), (104, 183805), (130, 147044), (260, 73522), (520, 36761)]