2007920

素因数分解:

$2^4\times 5^1\times {\mathrm{19}}^1\times {\mathrm{1321}}^1$

素因数の和:1353

約数の個数: 40

約数和(自身を含む): 4917840

約数和(自身を除く): 2909920

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 38, 40, 76, 80, 95, 152, 190, 304, 380, 760, 1321, 1520, 2642, 5284, 6605, 10568, 13210, 21136, 25099, 26420, 50198, 52840, 100396, 105680, 125495, 200792, 250990, 401584, 501980, 1003960, 2007920]

約数ペア:

[(1, 2007920), (2, 1003960), (4, 501980), (5, 401584), (8, 250990), (10, 200792), (16, 125495), (19, 105680), (20, 100396), (38, 52840), (40, 50198), (76, 26420), (80, 25099), (95, 21136), (152, 13210), (190, 10568), (304, 6605), (380, 5284), (760, 2642), (1321, 1520)]