199914780

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{256301}}^1$

素因数の和:256326

約数の個数: 48

約数和(自身を含む): 602822304

約数和(自身を除く): 402907524

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 13, 15, 20, 26, 30, 39, 52, 60, 65, 78, 130, 156, 195, 260, 390, 780, 256301, 512602, 768903, 1025204, 1281505, 1537806, 2563010, 3075612, 3331913, 3844515, 5126020, 6663826, 7689030, 9995739, 13327652, 15378060, 16659565, 19991478, 33319130, 39982956, 49978695, 66638260, 99957390, 199914780]

約数ペア:

[(1, 199914780), (2, 99957390), (3, 66638260), (4, 49978695), (5, 39982956), (6, 33319130), (10, 19991478), (12, 16659565), (13, 15378060), (15, 13327652), (20, 9995739), (26, 7689030), (30, 6663826), (39, 5126020), (52, 3844515), (60, 3331913), (65, 3075612), (78, 2563010), (130, 1537806), (156, 1281505), (195, 1025204), (260, 768903), (390, 512602), (780, 256301)]