2021287960

素因数分解:

$2^3\times 5^1\times {\mathrm{139}}^1\times {\mathrm{363541}}^1$

素因数の和:363691

約数の個数: 32

約数和(自身を含む): 4580629200

約数和(自身を除く): 2559341240

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 139, 278, 556, 695, 1112, 1390, 2780, 5560, 363541, 727082, 1454164, 1817705, 2908328, 3635410, 7270820, 14541640, 50532199, 101064398, 202128796, 252660995, 404257592, 505321990, 1010643980, 2021287960]

約数ペア:

[(1, 2021287960), (2, 1010643980), (4, 505321990), (5, 404257592), (8, 252660995), (10, 202128796), (20, 101064398), (40, 50532199), (139, 14541640), (278, 7270820), (556, 3635410), (695, 2908328), (1112, 1817705), (1390, 1454164), (2780, 727082), (5560, 363541)]