211034900

素因数分解:

$2^2\times 5^2\times {\mathrm{19}}^1\times {\mathrm{109}}^1\times {\mathrm{1019}}^1$

素因数の和:1161

約数の個数: 72

約数和(自身を含む): 486948000

約数和(自身を除く): 275913100

約数列:

[1, 2, 4, 5, 10, 19, 20, 25, 38, 50, 76, 95, 100, 109, 190, 218, 380, 436, 475, 545, 950, 1019, 1090, 1900, 2038, 2071, 2180, 2725, 4076, 4142, 5095, 5450, 8284, 10190, 10355, 10900, 19361, 20380, 20710, 25475, 38722, 41420, 50950, 51775, 77444, 96805, 101900, 103550, 111071, 193610, 207100, 222142, 387220, 444284, 484025, 555355, 968050, 1110710, 1936100, 2110349, 2221420, 2776775, 4220698, 5553550, 8441396, 10551745, 11107100, 21103490, 42206980, 52758725, 105517450, 211034900]

約数ペア:

[(1, 211034900), (2, 105517450), (4, 52758725), (5, 42206980), (10, 21103490), (19, 11107100), (20, 10551745), (25, 8441396), (38, 5553550), (50, 4220698), (76, 2776775), (95, 2221420), (100, 2110349), (109, 1936100), (190, 1110710), (218, 968050), (380, 555355), (436, 484025), (475, 444284), (545, 387220), (950, 222142), (1019, 207100), (1090, 193610), (1900, 111071), (2038, 103550), (2071, 101900), (2180, 96805), (2725, 77444), (4076, 51775), (4142, 50950), (5095, 41420), (5450, 38722), (8284, 25475), (10190, 20710), (10355, 20380), (10900, 19361)]