19001720

素因数分解:

$2^3\times 5^1\times {\mathrm{37}}^2\times {\mathrm{347}}^1$

素因数の和:432

約数の個数: 48

約数和(自身を含む): 44067240

約数和(自身を除く): 25065520

約数列:

[1, 2, 4, 5, 8, 10, 20, 37, 40, 74, 148, 185, 296, 347, 370, 694, 740, 1369, 1388, 1480, 1735, 2738, 2776, 3470, 5476, 6845, 6940, 10952, 12839, 13690, 13880, 25678, 27380, 51356, 54760, 64195, 102712, 128390, 256780, 475043, 513560, 950086, 1900172, 2375215, 3800344, 4750430, 9500860, 19001720]

約数ペア:

[(1, 19001720), (2, 9500860), (4, 4750430), (5, 3800344), (8, 2375215), (10, 1900172), (20, 950086), (37, 513560), (40, 475043), (74, 256780), (148, 128390), (185, 102712), (296, 64195), (347, 54760), (370, 51356), (694, 27380), (740, 25678), (1369, 13880), (1388, 13690), (1480, 12839), (1735, 10952), (2738, 6940), (2776, 6845), (3470, 5476)]