649975790

素因数分解:

$2^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{199}}^1\times {\mathrm{19213}}^1$

素因数の和:19436

約数の個数: 32

約数和(自身を含む): 1245067200

約数和(自身を除く): 595091410

約数列:

[1, 2, 5, 10, 17, 34, 85, 170, 199, 398, 995, 1990, 3383, 6766, 16915, 19213, 33830, 38426, 96065, 192130, 326621, 653242, 1633105, 3266210, 3823387, 7646774, 19116935, 38233870, 64997579, 129995158, 324987895, 649975790]

約数ペア:

[(1, 649975790), (2, 324987895), (5, 129995158), (10, 64997579), (17, 38233870), (34, 19116935), (85, 7646774), (170, 3823387), (199, 3266210), (398, 1633105), (995, 653242), (1990, 326621), (3383, 192130), (6766, 96065), (16915, 38426), (19213, 33830)]